It sounds like UK is getting the short end of the stick, your delivery drivers alone are utter nonsense. Here in the US... it's.... just.... lovely. Hahahahahhaha. Sorry.\
Deliveries are by actual Amazon electric vans, prime next day is next day, I don't watch the Prime TV much but have been surprised not to see any ads (yet), prices are however reasonable, return policy is utterly phenomenal where I can sample and keep the winning choice.
They have however completely crushed any competition which I can't say I agree with so they're the only real choice now. Also the reviews are scary, you can tell which are bot farm reviews because they all read like they've been written by the exact same person, so you need to be really decisive about what you believe.