Spend limit increased without consent

To whom it may concern

I am extremely disappointed in Telkom. I have been a loyal Telkom customer for many years and have never had a spend limit on any of my contracts. At the end of October 2017, I was unexpectedly billed R699, instead of the usual R199 that I signed up for. When I queried this, I was told that I "exceeded my spend limit of R500". This is absurd, as I DID NOT increase my spend limit. The consultant told me that all contracts automatically has a spend limit of R500, unless it is changed by the customer. This cannot be true, as I have always topped up my data when I ran out of data. With that being said, I would like to know when and by who my spend limit was increased. I don't believe that it is fair to be billed for a spend limit that I was not aware of, and that I have not requested.

I have lost trust in Telkom and there is no chance of me, my husband and family members renewing contracts with Telkom.