Telkom suspends my e-mail address for no reason and nobody at Telkom can help me!

I've been with Telkom for many years but the past two years have been an absolute nightmare! This week they actually decided to suspend the e-mail address that I've been using for the past 12 years and it's part of my fiber package! After spending hours on the phone since Monday a lady actually phoned me yesterday and said that Telkom has accidentally been charging me separately for the email address the past 5 years and that I'll have to pay that R600 and then R15p/m extra to use it again! I told her that the e-mail address is part of my package and she just kept on saying that there's nothing she can do about it! Telkom will actually still have the recording of the call as they apparently record all phone calls! I've lost so much business since Monday due to Telkom's absolute lack of professionalism and lack of s****ed personnel! I'm so disgusted and disappointed in them and definitely cancelling my account the first day after the lockdown is finished.