Which 2G PAYG network provider has rollover credit?

BobJenkins

Looking for a mobile phone network provider that supports 2G frequency which can be loaded with a 10 pound voucher that doesn't expire after a short period of time? Requirements are light phonecalls and text messages, no data requirements. 

Thanks in advance.

flashg67

I believe most providers do, but they all require a chargeable event (call/text) every so often, say every 90 days

eDicky

All except Three UK and those MVNOs that run on their network provide 2G coverage. Avoid subscribing to any monthly package, just select straight PAYG top-up (which can be a little obscure or perhaps impossible with some networks) and your credit lasts indefinitely as long as you don't fail to make a call or SMS within the stipulated period, often 180 days.

[Deleted User]

Try to get an O2 Classic sim from a shop or internet
Failing that ASDA Mobile is probably your best bet