my R12 airtime

Bought R12 airtime at 20:13 and got confirming sms and even vodacom giving a new balance but it never appeared on my fone I remained with the old balance. I called support who told me it would reflect before the end of the day. When it was not there in the morning I called again and was told it was used up bu internet which is A LIE! If this is not sorted out I will tell everyone on my Facebook and you will lose more than 1 customer. Sort this out ***