Dissatisfaction with Service

I'm writing to express the poor service I've received since I contacted your customer service department on June 29, 2020. I had originally purchased a TP-LINK wireless N ADSL2+ Modem Router from your company. When I returned home, I instead found a TP-LINK ADSL2+ Modem Router so I had trouble installing it. So I read the information sheet and decided to contact your customer service. Finally, I returned the Router to the Bryanston Johannesburg pickup point and until this morning I have no information about my request which has been going on for over a week and I can safely say that I am being penalized for a mistake on your part. If you really care about your customers, I strongly suggest that you teach your customer service representatives how to deal with people. Regretfully,