I couldn't buy data - vodacom non responsive

When I logged a complaint, after repeatedly getting errors on vodacom's website when trying to convert airtime to data for ***, the response was: The service request reference is S3-8GZ18-835X9, feedback will be provided within 24-48 working hours.<br> That was 6 days ago and the problem persists, meanwhile the R275 airtime I had has been reduced to R48 and there's no data!