Cameo hasn't been returning the money, they give you credit towards another purchase. They know real stars get busy and the Z listers will probably be a little flaky too, so once they have your money, they're keeping it. Not a huge deal if you loose $30, but the bigger stars can charge hundreds.
I had no idea there was no refundsies. This is why you read the fine print.
Then again, you are expecting professionalism on some level from the big names. If they take on more work than they can handle or think that cameos aren't worth their time after all that's pretty unfortunate for the fans. With someone like Hammy we can't say "Well she was filming her new blockbuster and had to be flown to Australia. It's a very tight schedule."
Tammy literally has no excuse because she's a 700 lb blob that does nothing all day.
I assume a lot of actors and musical artists made some bank because meet & greets and conventions were a no-no during lockdowns. Some of the ones that don't make as much money use these things to pad their bank accounts.
Did Amy do all her cameos? I know she got some names wrong but honestly if I got a cameo from her I'd be disappointed if she didn't flub something.
It's just amazing that in the beginning we thought Tammy was the "good" sister and Amy was just a sweaty greasy scam artist who went through pets like she went through Little Debbies. Amy seems to have improved a lot while Tammy sinks lower and lower and her true colors ooze out like cream filling in a Twinkie madly clutched in her massive flippers.