Terrible service

Vodashop Highveld Mall. After upgrading to a Samsung S9, i was offered a phone cover for my R500 voucher. When opening the box in store, the cover that is supp**** with the phone was discovered. I then requested a refund on the additional cover but was refused. I then requested to clarify with the store manager but the assistant aggressively refused to call the manager. Terrible, arrogant service over all. I now have a new phone (and two covers) but I'm left with a bitter taste in my mouth.