Hi. It's such an annoyance but I think that that is mistakes being made. Most GPs and pharmacists don't deal with trans issues very often, so it's not uncommon for mistakes to be made with prescriptions. I have a repeat prescription, but even so when I pick it up I make sure it's the 3 month dose, I then take it to the pharmacists to ensure it's a 3 month dose that they order (cause they never have it in, despite being attached to my GP and it being a repeat). I then check, when it comes in it's the right one.
The problem of mistakes goes both ways. My prescription is every month estrogen and vaniqa and every 3 months triptorelin. More than once I've gone to pick up a normal prescription and found triptorelin on it even though it wasn't due yet. At the price of that drug, you'd think they'd be more careful!
But yeah, the whole thing is a pain in the backside. I used to get my prescriptions from a gender specialist, and in fairness it was right every time back then as he was used to the drugs involved.
Emma x