Walmart - bought an Apple Card from walmart, they said they activated it and said so on card, Did not work and would fix error Tucson Arizona

bought an Apple Card from Walmat, they said they activated it and said so on card, Did not work.  Returned to walmart after the pin number was not valid. Walmat said it was Apples problem. Contacte Apple, sent copy of the recipt an worked with agent and was told be fixed in 10 days. 20 days latter no results and was sent by Apple an email that was Walmart's problem. Returned to Walmart and as was told i was trying to scam them when i had the origianal recipt and all. They were upset i used cash for the card and said bacicly to bad. So contacted Apple in Walmart and they fought it out. So basicly i am out $500. Dont buy an Apple card from from Walmart or maybe any other card that they can make a mistake on.