Thanks for that
Evo. It never occurred to me to check on StopStart's site as I thought it would last forever. I live and learn.
My next problem is that when I used the "Change Avatar" button in my CP, I received the message :
The administrator has disabled the use of avatars.
Where do I go from here? Have I simply lost the money that I paid originally?

I don't think that I'd been made aware that I'd ever be likely to lose the option for an avatar.