MTN Ferndale on Republic L32 unprofessional and unhelpful

The consultant/staff member, Patrick, became defensive after 4 calls requesting an invoice/receipt of a phone that I purchased from the store. He was informed about my predicament and urgency, yet he put the phone down in my ear twice. I have been a loyal customer for years to mtn, never missed a payment and even referred friend, family and colleagues to be customers of mtn. Patrick's last words were that I should come into the store in person, he knows very well that I am 8 hours away. This is the second time this store has disappointed me because I was informed that the other consultant who worked there didn't even register the correct phone model when I bought the phone on contract. Absolute worst store with even more disgusting staff that has no business in dealing with customers.