Exchanged damage shoes with another pair of damaged shoes.

I have ordered a pair of shoes end November only to receive a dirty pair. After exchanging the item as damaged I received a second pair which was even worse than the first pair. The shoes were either worn before or display units somewhere. My third time exchanging the shoe and I am awaiting collection of said item, however my problem is that - Who Q/A's items when your client clearly sent back the shoes due to being damaged and you send me ANOTHER damaged pair of shoes. Im not able to call them (line gets cut after automated msg mentioning business unusual due to covid) and when trying to log a query on the app I get constant errors and I have tried numerous occasions on more than one day/phone. I REALLY HOPE THE 3RD TIME IS A CHARM but I am yet to receive any joy. I am a regular client with no issues thus far, so this had been rather frustrating and disappointing.