I bought a cheap SIM for my son to use walking to school. It had some data and unlimited calls and texts. It’s been a couple of months without using it but he started today. He can make and receive calls and can receive texts, but not send texts - it just says Failed, with no explanation.
I think I need to check the status of the SIM card - if it needs a topup or similar, but I can’t find a way to ask iD about this.
Any wise words gratefully received.