Lack of feedback

I logged a complaint with the call centre on the 13/10/17 that my airtime is being used on data, as I am buying blackberry data bundle. I received a sms that I will be contacted within 2 working days. I called on 18/10/17 and I was informed that I have to wait 48 hours for a response. After this call I get an sms notification to mms voucher no further details. Nothing further. Is this how Vodacom choose to resolve complaints? Very unhappy.