Bad service from makro.

I bought a heater online, it was delivered incomplete. I returned it, three weeks later I'm yet to receive a replacement. I was calling every day, spoke to matshidiso who was willing to assist me initially but later she blocked me. Everytime I call the only response I get is escalation. I'm very frustrated because it is cold the reason I ordered the heater. Even today I'm still waiting not sure what to do anymore. I'm very disappointed and frustrated with this kind of service.