Horrible Service

I have experienced the worst kind of service from your agents. I have been doing a follow-up on my post 40 day debit order reversal since last week. I logged the dispute in 27 September. The first agent I spoke to on your online chat was not willing to help to an extent that she said I can go ahead and write a complaint online. today I spoke to one agent and I said can she rather put me through to a manager because the last agent I spoke to said she escalated the matter to the manager. But this lady put me through to another agent and I told that one to put me through to the manager and she was putting me through I could hear her on the background saying I'm annoying but still put me through to another agent who still couldn't help me. Is this how you train your agents and I have their names. Can you just refund my money and take my banking elsewhere, where I will not be told that I'm annoying? I even have a case number.