Signatory hasn't been removed in almost 3 months and the business banker never replies!

I was in a branch last year after removing myself as a signatory from a business and also wanted myself removed from the business account as well. This was on the 22nd of November 2022. The branch assisted in sending the updated company documents to the business banker but to date nothing has happened and only that business banker can remove me. On a call with the business contact centre this morning they tried to send me through to the business banker, again unsuccessfully and he now claims he never received any such email. I have proof of the email being sent, am receiving no assistance and want this account removed from my profile promptly. Three months to remove a signatory is deplorable and I've complained about their service while still a signatory and it's now worse when I'm legally exposed to an account I have no right being a part of.