Discovery Bank - Refusing to re-imburse fees.

TLDR: charged incorrectly for an already closed, raised it and they claim otherwise (even with existing email proof).

Longer version: I paid off a credit card account with Discovery Bank on 25th August 2023 and requested they close it. I received an email stating that the account was closed 4th of September 2023. They had the nerve to take money from my account for a monthly credit fee which was supposedly "closed". I followed up and was told that they would look into it, it shouldn't be an issue, and the fees would be returned. Two entire weeks pass and they give no feedback. I had to spend ample time following up with their customer call centre only to be told that they had "ALREADY" resolved it and wouldn't reimburse me. According to them, the account was still open at the time. Even though there is an email trail they think they can get away with such ****py customer service. That tells you quite a bit about their customer service. I am thoroughly disappointed and wouldn't recommend this bank to be honest.