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My SIM is faulty, what do I do?

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O2 - O2_24_UL-UL-150GB_2EED58 SIM Only Contract Deal

£22.99 /month
- UL Mins
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Vodafone - Voda_24_UL-UL-2GB_L99DZB SIM Only Contract Deal

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Three - Three_12_UL-UL-UL_571H29 SIM Only Contract Deal

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O2 - O2_1_UL-UL-5GB_B1Y3ZV SIM Only Contract Deal

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O2 - O2_12_UL-UL-1GB_P72CU5 SIM Only Contract Deal

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In the News

Keep informed on the issues affecting SIM only customers

What's behind the recent surge in nuisance calls?

A couple of months ago, your correspondent was writing an article for this website when the phone rang. It was an unremarkable-looking mobile number, whose last three digits were 327. Upon answering, there was a slight pause before the line...

Revealed: what happens to sold or discarded mobile phones

Every year, there are 1.5 billion new smartphones sold around the world. And while some of these sales are to first-time smartphone owners in developing nations, it’s fair to assume the majority will be to replace an existing device. Amid...

The UK's favourite mobile provider isn't the one you'd expect

You may not have heard of the Institute of Customer Service, but they are the unofficial auditors of how British companies deal with their clients. Twice a year, this independent professional customer service body publishes a guide revealin...

Five big things to come from 5G

Like an interrupted preview of a future we barely understand, the UK’s rollout of 5G has so far failed to live up to the hyperbole. With only a sliver of the 3.4GHz frequency band released thus far, some UK 5G networks are slower than the...

SIM Only Consumer Guides

Get the best from SIM only services and tech

What was the first internet phone?

Incredible as it may seem today, mobile phones were fairly passive and largely offline devices as recently as the mid-Noughties. There were no app stores, no 4G connectivity and no mobile versions of desktop web browsers. Internet Explorer ...

How network operators calculate coverage around the UK

If you live in the heart of a major city, it’s easy to take mobile network coverage for granted. If you live in a rural county like Cornwall or Pembrokeshire, you’re unlikely to be so blasé. Mobile network coverage varies hugely across...

How Apple's iPad invented a new market

It’s almost exactly ten years since the Apple iPad debuted in a world that had hitherto existed quite happily without tablet devices. In 2010, digital communications took two main forms – through desktop and laptop computers, or across ...

How Number Verify could improve online security

It’s a common scenario. You log onto a website to perform a financial transaction, enter your card details, and a message flashes up. “For your security, we need to confirm your identity by sending a verification code to a number ending...

Featured SIM Only Deals

Our pick of the latest offers worth shouting about.

The best Pay-As-You-Go mobile deals of 2018

Once upon a time a Pay-As-You-Go deal was exactly that. Pre-paid SIMs were once marketed extensively and were highly successful. They helped transform the mobile phone into an essential item. But their popularity has been in decline for so...

Virgin triples data on cheap SIM Only deals

Virgin are offering triple data on their 12 month tarriffs this month. Both cheap SIM Only deals hunters and major data addicts are set to benefit. Virgin piggybacks on the EE network, consistently rated the UK’s fastest 4G network b...

Mega O2 data deals: 15GB for £20, 50GB for £30

O2 has hit the reset button on its SIM Only deals adding huge chunks of data and minutes to its 12 month offers. Bringing back the basics, O2 is focusing on big data deals at reasonable prices. Cheeky added extras are included in the bundle...

Easter BT SIM Only deal: £70 free up to 25GB

If you’re in the market for a BT SIM Only deal then now’s the time to strike. For their 2018 Easter sale BT are effectively offering free cash in the form of a prepaid Mastercard Reward Card that you can spend anywhere you like...

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