Quick to take the Customers money but lack the support to service the Customer After.

I bought a Pioneer car set at Makro Port Elizabeth, had it installed in my boat, a week later the radio was giving me problems, went back to Makro for them to replace the unit as it was basically brand new, the poor service I got from the start, no one wanted to help me and was sent from one end to the other, they did not care about the fact that it cost me R1 300.00,all I was told they will send it in for review, how many weeks later it comes back and their service provider stated as water damage, please explain to me how does a radio get wet inside a boat cabin? Never the less, I went back to Makro to ask for assistance as to send it back to the service provider to have it repair, I was told straight out they do not deal with it,it is for me to send it off, what kind of service is that, you can not even make an effort to assist me?