Exorbitant data costs-

In December my smart phone somehow consumed a large amount of out of package data. Approx R1000. I didnt dispute the use of the data. I just simply requested that they charge me bundle rates even retrospectively. The account is 18 years old with countless loyal renewals. They have made plenty of money on me over nearly two decades. They dont need R1 per meg from an old loyal customer, no matter whose fault. I got stock answers, automated sms surveys and assurances that I had infact used the data. They did not address the issue. I hope to find a better company when my contract soon completes. Their complaint ref no was: A1-WX1l-TWE4NW