No customer service and missing parcels!

Ordered alcohol, during black Friday, for a function thats on the 16th December, with Makro. They sent Value as the trusted courier! Instead of delivering 7 boxes, they only delivered 1. I was not home to talk to the delivering driver but when I called their line to talk to a consultant, some Afrikaans speaking man answered the phone after 6 min of being on hold, he then put me on hold again after just greeting me. I hung up after a total of 10 min!

At this point, I have no hope. The function is next week, what am I supposed to do? They have had ample time to rectify but you'll get nothing from them!!!