Changing accounts of perfectly happy clients without consent!!!!!

I have been with standard bank for over 11 years and last month my bank account was “ upgraded “ without my knowledge or convent . I never agreed to change the type of account I have .

I was happy with the account I have and you are changing my account unprovoked !!! All I see if that my monthly fee is suddenly higher !!!!!

I will be changing banks due to this as this is not how you treat customers . I received an email fr one of your bankers Adrian Sabapathy and he assured me that this was a glitch in the system and the fee would be paid back but this is not the case!!!!