Very disgusting service

On the 21st of June I asked them to change my debicheck mandate and provided them with my new account details as I wanted to close the one account I have, they read it on the 23rd of June, earlier today 01-07-2024 they sent me a message asking me what bank to use but I supp**** them with all the stuff, just to log back into my account to find that they debited it from my bank I wanted to close, useless