Bad service

I have a business contract with Vodacom with more than 1 line. I had to upgrade my line and on two occasions they came to deliver with RAM and on both occasions due to improper paperwork it was returned. I called more than once and received empty promises. Upon lodging a complaint it was brought to my attention that the consultant cancelled the upgrade without any consultation. I lodged a complaint with customer service manager, Thato who promised to forward it to the relevant department and 72 hours later, nothing. Thisnis pathetic service.