Arrogant, patronising and unhelpful agent

Today I visited the shop with the intention of booking my contract handset in for repairs. The agent never greeted me and upon greeting him he gave me a cold response, which I ignored. I proceeded to inform him that I wanted to book my phone in, he then rudely interrupted me asking if I had dropped the phone. I told me a hadn't'. He then asked me which branch of Telkom a bought the phone phone from, told him Cresta and its still under contract. He demanded proof of purchase or I must go to Cresta (20km away). I told him I don't have proof of purchase and he can get it from system or call their Cresta branch. I refused and asked him to book by handset in.I then asked for his manager and he told me he wasn't around. <br> <br> Telkom please explain if is this is typical behaviour (arrogant &amp; patronising) of your agent, secondly is the proof of purchase story correct.