I recently gave Apple $800 for some smart watches. UPS never delivered and lost or stole them while returning them to Apple. I've been on the phone with Apple

I recently gave Apple $800 for some smart watches. UPS never delivered and lost or stole them while returning them to Apple. I've been on the phone with Apple once a week for the past month. It's all been very cordial. They have repeatedly "issued the refund", said I'm not at fault, etc. but the money has not been returned to me. At the end of the day they are holding a fair chunk of my cash that would be earning interest in escrow indefinitely. This is a case where a chargeback would be warranted, but if I did that then my Apple account would be locked out. This made me realize I have too many digital eggs in one basket. Even if I liked Apple more than other options I was taught that I should never put myself in a position where it is painful to walk away.