Hi fred820,
Thanks for getting in touch, I'm sorry that you're having this problem with your PAYG SIM card.
In order to maintain your services, you would need to make a chargeable call or text every 90 days, as enlli has kindly highlighted. As freephone numbers/texts aren't chargeable, they wouldn't register as activity on the account. I'm sorry about this.
Do you have a home phone/landline number at all? You could call yourself, in order to ensure that your services are maintained. Please let me know if you need any more help with this.
Kind regards,
Laurie
Laurie_C
Forum Team