Banking blues

I have been trying to put in a notice for a week and a half and there's an apparent IT issue so I can't get into my account. I went into their branch in Hatfield and I spent my entire lunch break waiting to see a consultant so I left becauseit was taking forever. When I eventually went back they told me they logged a call and that it would be sorted out possibly the next day. I moved from my previous bank because of such issues but it's the banks responsibility to ensure that certain glitches don't occur. It's been a week and it doesn't seem like there's an urgency to fix the app and I'm honestly the kind of customer who avoids going into a branch, if I can do it on the app all the more better. I'm not satisfied with the way this issue is being handled if it's been handled at all. It's honestly disappointing.