SMARTY

Do not get this SIM card if traveling. Purchased a plan for one month while traveling. Never got it to work. Specifically did not sign up for reoccurring payments, they charged me for another month. Was helped promptly through email after leaving a 1-star review, and the matter is resolved, but the app wouldn't open after I tried to use the chat for help feature so all help was rendered through email. 3 stars for prompt customer service and working with me from abroad.

Up until last week I'd have rated SMARTY as 4 or 5. Great value and strong signal. But I've had no signal at all for 9 days, and SMARTY cannot give me a definitive reason or timeframe for it to be fixed. They suggested I order a replacement SIM card, but that made no difference. I can get a signal in a very small area about 2 miles from home, so I know my phone is working. It feels as if 3 have suddenly decided to limit access to the customers of piggyback providers. Chat help is frustrating.

About the cheapest mobile service provider you can find. I signed up through Money Supermarket, who have an offer that knocks £4 off the unlimited data, texts and calls sim. It lasts a year before going back to £20 a month. Smarty's well worth signing with. Their 5G is excellent. Customer service is text based but, when I've needed it, I have no complaints. They use the 3 network, so you know it's good.