Internet problems

I did a comprehensive review on Hello Peter. The bank did try to call me but I was not available. The caller left no message I have tried to call the relevant number but there was no response. I am finding that the responses from the bank always promise something which does not happen. My main issue is how can my internet online banking details become invalid. A week ago I had to visit a branch to change my password. This should not be happening! I am also waiting for the refund of two unauthorised purchases on my credit card. No use was made of “ otp “ - one time password, as is usually the case. The bank can respond to me via my email address