Bad Customer Service

I bought a sound system that was delivered with an incorrect remote that responded with the Amplifier and not the DVD. i reported the issue and was promised by the manager Veronica that she would contact the Warehouse and call me back to give me feedback. Two weeks later I decided to take the initiative of going to the shop dirrectly to find out as I have been waiting for the feedback from Veronica but still have not received a call as promised. I spoke to Veronica at the shop to find out as to why I have not received her call as promised and she said I must come back two days later to collect the correct Remote control. I then got a call on the day that I was meant to collect the Remote and they were requesting that I bring the DVD and the remote to prove indeed that what I was saying is true or not. I have been waiting for remote for so long only to be told this bull that I need to bring the dvd. Is it not their duty to send out someone to my home to come check instead of me having to carry the dvd around, and was I not supposed to be advised to do such when I 1st reported the matter!? I cannot use the dvd at all due to their careless mistake. Please assist.