Some people are amazing and not in a good way.
My dh really thinks about loaning money. He says if he loans it he doesn't expect to get it back. If he does get it back, he says it a bonus. I'm not that way, tho. It seems like 'friends' are the ones who hurt you the most. Of course, who else do you loan to.
Good luck with the prescription. I guess if the original one doesn't get used, there shouldn't be a problem getting a replacement for it. And as you say you have to sign for it and you haven't signed yet, right?
I used to get $4 prescriptions and I had to watch CVS very carefully because they would charge me $10. I switched to Wally World and haven't had any problems...so far. Let us know how it comes out.