waiting period

As a responsible person I realised that I'm going to experience problems paying my contracts so i decided to terminate them in advance.I was told to submit all the necessary documents which I did through the help of Sithembiso Mcunu from customer care Eastgate.I was told that I will have to wait 24hrs before I could get a letter that states that everthing has been cancelled,which I understood.To my surprise I received a message within an hour, that I'm now on prepaid as I opted to retain the numbers.I then contacted Vodacom and asked them to send me an e-mail stating what they said on an sms and I was told that I have to wait 24 to 48hrs for that.As I write this I no longer have BiS and I'm on prepaid fully,so I don't understand why must I wait for an e-mail that repeats what's on the sms and is already fully operational. <br> Regards