Vodacom
Cheating on contract period

I opened a new contract on 30 June 2011 and it was for a 24 month period. The first payment was made at the end of July 2011. I canceled the said contract and received an sms, that I would forfeit all remaining airtime, which I PAID for with my contract fee, telling me my number would be disconnected on the morning of 30 June 2013. But here comes the joke, they still want to bill me for this contract, making my last payment on 31 July 2013. I might be blonde, but certainly not stupid... the last payment, should be on 30 June 2013, making the payments 24 in total not 31 July, which in effect would see to it that I have paid TWENTY-FIVE MONTHS. The contract was for 24 months and that is all I am willing to pay. Either fix your computer program, that does this erroneously or get someone that can count. I am absolutely livid, that airtime, which I HAVE paid for will be forfeited, merely because I chose to end the contract AND THAT THE LINE WOULD BE CUT IN THE MORNING AND NOT AT MIDNIGHT OF THE LAST DAY. Please look into this matter and get back to me. I have been a contract customer of yours for almost 10 years and even longer on prepaid