How to top up on Three over the phone and online

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Last update: May 29, 2023
Fernando Carrillo
120 people have read this post in the last 12 months

Three Top Up can be done via several means. They include over the phone, online or with a voucher. This article will teach you what it means to top up with three and how to top up your Mobile with Three.

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How to top up on Three

There are numerous online and offline methods to top up Three accounts. They will be listed below, along with brief descriptions of how each top-up option functions. You can add money to your Three cell phones by:

  • By using your My Three account.
  • Within the Three apps.
  • Without creating an account with My3.
  • Cash ATMs at Barclays and HSBC.
  • by phone
  • By using top-up coupons.

Top up online on Three

Three online top up can be done on your smartphone online with Three using either your My Three account (accessible online or through the Three App) or without registering.

Top Up to my My Three account

With the help of Three's web platform, My Three, users can manage every aspect of their phone or home internet service, including Three top up online from a single location. Go to the Three homepage and select Register from the top menu if you want to create an account. Input your Three mobile phone numbers, then proceed as directed.

This is how to go about it. On the My Three homepage, click top up your account. Next, click the Credit/debit card option. Finally, on the payment screen, register this card for future usage. You may also register a card by clicking Add card under Manage cards in My Three. If you register a card this way, Three will automatically deduct £10 from it and put it as a credit to your account balance.

Register again if you haven't already, then log into your My Three account. After that, select Top-up your account. Choose the Credit/debit card option, then adhere to the directions. Please be aware that by selecting Register this card for future use when you verify the transaction, you can register a credit or debit card to fill up faster. You can also visit your My Three account's Manage cards area and select add card.

Top Up on the My Three App

My Three App is another avenue for Three online top-ups. Download the Three App from Google Play or the Apple App Store to Top Up on the My Three App. Install it and connect it to your My Three account after this is finished. Visit the Allowance area, select Top-up, enter your desired amount, and follow the on-screen directions.

Single payment

Enter your payment information or choose the One-off payment option to make a one-time card payment.

Pay with a voucher

You can use a Three top-up voucher to top up on Three. To top up your account with a voucher, go to the My Three homepage, top up your account, click the Voucher tab, and proceed as directed.

Adding money to a friend's account

By login into your My Three account and choosing to top up another account in the Top-up area, you can perform Three anonymous tops on a friend's account.

Online recharge without creating an account

You don't need to register a My Three account to do three online top-ups. Visit the homepage of the Three website to top up without registering. Then move your cursor over the menu's Shop section. Below Current customers, select Top-up. You must enter your phone number. The following step is to choose the Credit/debit card and a top-up amount. You must then enter the information for your credit or debit card.

Three Top-Up numbers: Do it over the phone

Three Mobile gives you a variety of ways to top off your phone.

Top up on Three at a cash register

Users can do Three mobile tops up on Three phones at any Barclays or HSBC cash machine if they have a card from either institution: Barclays, HSBC, Nationwide, The Coventry, Yorkshire, or Clydesdale. You only need to choose the amount you wish to add to your Three accounts and enter your phone number. Your bank account will be instantly debited for the amount.

Top Up on Three with vouchers

Nearly every supermarket, small store, petrol station, and post office that displays the green top-up emblem sells Three top-up vouchers. You can purchase them at any Three locations as well. There are several ways to use your Voucher, including:

  • To top up using a voucher, dial 444 from your Three mobile phones and input the 16-digit number seen on your receipt.
  • Move your mouse over the Shop menu item on the Three website's home page. Select Top-up from the list of Existing Customers. Then choose Voucher, enter your phone number, and follow the on-screen directions.
  • If you've registered a My Three account, log onto the My Three website. Select Top-up by Voucher when you click on Top-up your account.

Top up on Three via your phone.

Additionally, Three allows you to directly top up your account over the phone with a credit or debit card. You must first register a credit or debit card to do this. You can call 333 from your phone or follow the above steps to register a card through your My Three account. Once you've done so, dial 444, select "Top up by card" and then follow the on-screen directions.

Top up on Three

The phone network provider Three allows customers to purchase credit over the phone. You can either pay directly by debit or credit card. Alternatively, you can have a Three gift voucher sent to your home address.

How to check My Three credit balance

There are two ways to check the balance of your Three call credit or mobile data:

Call to check your balance:

  • From your Three mobile phones, dial 444.
  • Your current call credit balance will be announced.


  • Logging into your My Three account will allow you to see your Three balance.

How long is My Three call credit valid for?

Your Three top-up Voucher must be activated within 90 days of purchase. Your Three phone credit or mobile data is perpetually active once activated.

It's good to know that you must use your Three mobile numbers to complete a charged action at least once every six months. Your SIM will be deactivated by Three UK otherwise. A call, a text message, or data consumption are all billable actions.

How to Top Up abroad

There are two options for three international top-ups.

Call +44 7782 333 444 and follow the prompts if you still have call credit on your Three mobile SIM.

Is no more call credit available? Get online and top your three tops within seconds by connecting to Wi-Fi or 3G.

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Our methodology
Roams offers a free information and comparison service, which tries to help anyone find the product that best suits their needs. To ensure that the data presented is correct, extensive market research and product analysis is carried out. Our database of mobile phone and internet rates is updated every day. The content is frequently reviewed by a team of writers with previous experience and/or specific training in telephony.

Personas que han participado en este post:

Fernando Carrillo
Actualizado por Fernando Carrillo

Fernando estudió Administración, Publicidad y Relaciones Públicas. Con más de dos años de experiencia en Roams, Fernando es experto en el asesoramiento sobre telefonía, tarifas de móvil e internet. Además, también es especialista en canales de televisión y las distintas ofertas que tienen los operadores con tv.

Laura Burón
Edited and revised por Laura Burón