Asda Mobile
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Best value for payg
I needed a replacement payg sim for my tablet and knowing that Asda were offering the best deal at 100gb for £18 I ordered online. The sim arrived 3 days later and was a bit of a faff to get up and running. I had to call customer services to activate as online activation repeatedly told me "unable to activate" the person who I spoke with was very helpful and was able to activate everything fairly quickly for me. I definitely recommend Asda Mobile. I very rarely need mobile data, just for UK holidays once a year so will most likely need to purchase a new sim again next year as the account and number will automatically close down before I need to use it again.