@Bobbobrichard "I guess I did not know that I needed to do that"
i'm not sure I would've known either but I was using a very good financial website at the time, sadly defunct now. It had really clear explanations of all financial products and the various things that could happen with them - maybe Martin Lewis has a section on this? I don't know.
I do think that the banks should give you a clear set of information on what happens with overpayment. I think that is a totally legitimate expectation from a bank.
You say that you've complained. I actually wonder if it's worth complaining again.
The difficulty is going to be proving that you've actually lost anything - have you? So if you were expecting your payments to reduce, then obviously you would be expecting your interest to reduce as well.
Can you calculate how much you have paid as a result of the error?
Can you confirm that it's not written down anywhere, on or off-line, that you need to specify that you are paying money towards the mortgage lump sum?
If the answer to both of those questions is yes, I would try another complaint.
If it's any consolation, I have had two issues with bank customer services in the last week. Now that everything is online, they don't want to do anything.
The first time I had to call them because there was a problem with something online, and I realised too late that the action I was asked to take, quite fiddly, I was likely asked because the person on the phone couldn't be bothered to do it themselves. I think they actually could've done it. I was very puzzled by their explanation at the time but I just accepted it because it solved the problem I was having.
it was only when I was physically in the bank with my mum today, trying to sort out something that used to take 10 minutes max - and it took them nearly an hour - that I realised it's probably something to do with lack of training for bank staff or just lack of motivation. So many people don't seem to actually do their job now.
The lady we saw today seemed to be completely thrown by doing a really basic banking transaction.
sorry, I'm waffling. Basically, I think it's quite possible that you have spoken to people who don't understand the situation. You can't rely on banks - or anyone really - to actually know what's going on these days
It's one of my biggest frustrations both at work and in general life admin.
So if you can find something in writing that backs up what you're saying, maybe make another complaint and you can get your interest adjusted in whatever way is relevant to your lump sum overpayment.
I hope that makes sense. I'm old enough to remember when banking was really easy! Actually, it was a lot easier even 10 years ago.