Bad service

Vodacom Call center.<br> <br> I bought 3Gigabyte of data on the 6th of January 2016 but I choose the wrong option. I chose month to month instead of 30 days option. I called Vodacom the same time I realised my mistake and the consultant who assisted me said she logged the call and I even got sms notification that the service was cancelled but they cannot take back the data(long story). To my surprise on the 1st of March I got another 3Gigabyte of data which according to my knowledge I thought was cancelled, I called Vodacom and I was told they will log a call for my query. I don't remember the date but I called Vodacom again just to confirm if the service has stopped and I was not assisted as the consultant could not see on the system. I called again today to check if tomorrow as it is the 1st of a new month I'm not getting data again and the lady that was assisting took me to customer survey after being on the call for about 30 minutes.<br> <br> How am I supposed to rate such a service. I was not helped and its a pain to call again, high call volumes. This is the worst kind of service I have received, how am I expected to deal with these.<br> <br> Please assist as I wait impatiently.<br> <br> Regards,