Being billed for promos on my internet ****le line

Firstly I have not recieved a statement for my MTn internet deal since August 2013 (I only signed up for it in June that year), however this did not bother me while my monthly charges were as agreed to. Since January this year however my monthly amounts have exceeded the contract amount. I stumbled across the \inbox"on my ****le device and see I have magically been signed up for some or other promotion which charges me a daily fee without actually offering any services. It is unacceptable firstly that MTn would allow any service provider to start charging me without my written consent as they have a contractual obligation to me. They also will allow companies that offer no services and are therefore the same as a **** to charge me. And they allow these companies to charge me even though there is no possible way I signed up for the service since this is purely a internet line. I have just complained to the customer care line and will see what happens. It is unforgivable that years after carte Blanche exposed this problem that it is still going on and that the companies we take out contracts with haven't done something to protect their clients"