Pathetic service over the phone!! Rude consultant at home loan collections!!

I called standard bank a few minutes ago to make a payment arrangement with regards to my home loan and I spoke to a consultant called Melissa, from the collections department She is extremely rude and sounded irritated right through, at some point I had to call her out and told her I do not like the tone of her voice, and she apologised saying this is how she speaks in all her calls and does not aim to be disrepectful, now just because she speaks to majority like that it does not make it ok!! Now I am extremely angry and do not want to deal with a company that has consultants I have cancelled my home loan and also plan on moving all my policies as I and do not want to deal with such encounters in future who will make their clients feel small in any way. I do not appreciate the level of disrepect an unprofessionalism towards me or anybody else for that matter, this company needs to do better when it comes to customer service!!