Rude Staff and Unexplained deductions from account

I noticed that claims from 2014 were all of a sudden getting reversed on my account, with no explanation or contact from Discovery, so I called their contact centre to find out why this was happening, I was put through to Lemesh, apparently the manager of the department, and asked why this was happening, he said that it shouldn't have been paid or claimed in 2014 so it is now getting reversed on my account. This is shocking that they can do this without notifying me and even if they did do it, at least either call or email to explain why. He disagreed and said theres nothing i can do about it and I must just accept it. I asked to speak to someone else as I found him very rude and unhelpful, to which he rep**** that anyone else would tell me the same thing and i must accept it. Wow Discovery - after 5 years of having little to no issues with you, this is the type of person you not only put on your phones, but as a manager? Absolutely shocking, thanks for not only ruining my day, but for taking funds out of my savings without notification at a time when i need it most. So sad. *** for my recorded call with Lemesh.