This needs a roll eye emoji and a deep breath.
I bought a HRT only prepaid prescription certificate last July. All good, doesn't cover Testosterone but I knew that.
I am now on two other meds for a thyroid issue, I've been paying so far but yesterday finally got around to calling a the website suggested to upgrade from HRT only to full.
After queuing it turns out that you can't upgrade one to the other and I can't even buy a full PPC at this point as the system will "know" I've already got a PPC but won't know that it's HRT only

So I'm stuck paying prescription fees and my surgery insists on issuing only monthly amounts.
The lovely lady I spoke to said that I can claim costs back for 3 months when I do get a full PPC (July), however it was an offshore call centre and I couldn't understand her explanation. She seemed to be saying that I need to get a form when I pay and then I can backdate the full PPC and claim the costs back?
Do I get that from the pharmacy?
Is this actually going to work as if the system won't let me buy a PPC now, is it going to let me backdate it?
Seems barking and very much a "computer says no" scenario.