Data cost increase 5 fold

<p>Despite numerous calls and being shuffled from dept to dept, this issue is still not resolved.</p> <p> </p> <p>My contract was supposed to be capped and a credit limit put in place when i signed my contract, This was true for the first 20 months of the contract. Sudenly in the last two months i have received rudiculous invoices, one was 5 times the normal invoice amount and the latest one was double the invoice amount.</p> <p> </p> <p>This should not have been possible as my account has always been capped but i have not been able to get a satisfactory response from any of the staff i spoke to.</p>