UNABLE TO CANCELL CONTRACT ALREADY PAST 24MONTHS

I have tried numerous times to cancel my Data Contract before it reached its 24 months - i was told that i first had to expire for me to be able to cancel it on more than one occasion.<br> <br> I phoned on the precise day that the contract expired to cancel i got another excuse that i would have to do it the following day which was Saturday.... phoned Saturday, waited for ever before someone answered and was told that cancellations was not working over Weekends. but the will phone me back within a week...... still waiting 3 weeks later<br> <br> I then send numerous mails to customer care to have this canceled - still nothing!!!!<br> <br> i was obviously billed for this month and still I cant get it CANCELED!!!