unnecessary biling

I have a contract with Telkom for more than two years, the very same contract expired end of January but end of February there was an amount of R500 that was deducted ,when I went for enquiries they confirm that my contract expired therefore they had to deduct double the money because am no longer with them, the consultant who service me on the day of cancellation confirm that they are still going to deduct another R500 for this month again.<br> <br> This is very much unfair, deducting my money for free when I do not have any service with them, What is the R500 for? Why double the money when im no longer with them? Why didn't they call to inform/caution me that this is about to happened was paying 249 and now im paying r500 for nothing, Can this be sorted please ,my money is gone on waste, is this the way this company treating their clients, getting money for free.<br>