Terrible Customer Services

I bought a Bozza gig sim card online as a once off purchase. It had 20 gig for R149. The sim card was delivered on October 07 by DSV and all requested documents were given to DSV. Sim card was rica'd on the 08 October, and I called MTN Customer Services re the data allocation. A ticket was logged from the 08 up until today which is the 12 October there's no data on the Sim card. I have been calling MTN if they can just load the data that I bought, but no one knew what's going on exactly. A response from one of the Supervisors was that I must load a minimum of R29 airtime for the data to be effective/reflect on the sim card but I took that stupid advise and it didn't work. The services from you guys is appalling, if you can't resolve minor issues.