I have to admit that it could be a ME problem and I'm the one who is problematic, but I think it has escalated a bit too much for my liking.
I got in touch with one of those "free mortgage advisors" (big company endorsed by Zoopla), just to sense check what I already new. I was open to do business with them as long as it made sense (i.e. get make some decent savings) but otherwise I was happy to DIY, because I would stay with the same provider, and there's a big overpayment that needs to be made and they (the mortgage brokers) couldn't give me a firm answer about it. I was clear about this from the start.
Long story short, I asked this person what was the real advantage of using and he admitted that there was none beyond giving him a condition because he "had mouths to feed".
Most importantly I did say that I really preferred to proceed on my own, and didn't want to apply through them but this "advisor" said that he had to apply for me but could cancel at any time. To my surprise, I received an email later that evening stating that I "verbally accepted to proceed" which I didn't.
So I called this morning to the call centre to cancel my application. The lady was very kind and understanding. A few minutes later the "advisor" calls back and says he wants to discuss something with me. I said there's no need, I'll manage it via call centre. He was adamant I needed to go through security questions so I just then hung up.
I called the call centre again to request to not be contacted by him again, as the whole interaction went from uncomfortable to uneasy. I also mentioned in my first call with the call centre that I really didn't want to get him into trouble, I just didn't want anything to do with their services.