Appalling Service - Woolworths Northgate

I walked into woolworths Northgate to purchase 2 suits jackets. Firstly, the sales attendant cautions me from 10m away to try on the jackets in the fitting room, in front of two other customers. Could she not have come up to me and had that discussion with me. Secondly, I ask her to assist me to find a 38 regular suit jacket. Her first response was they don't have any. I asked if she could please check. She again said they don't have. I browsed the rack and found a blue jacket in my size. Now, without checking, her first response was they don't have. I asked for the Manager and the Foods Manager came to me. His first response after hearing my complaint was that the sales person is upset. I asked again, if he could assist me to find a black jacket..why did I have to ask again. I had to ask him to check other branches for me to be able to source the jacket. Why do I, as a customer, have to ask for such. The staff acted like they were doing me a favor by assisting me to buy 2 suit jackets.