Bad Service

I am really disappointed in Samsung. I bough a HW-MX360/XA sound bar last week Friday, and wanted the rear speak that you can buy separately. But now where in South Africa they are available. You cannot even buy another model as this system only work with a specific model (SWA-8500S). I phoned Samsung on Monday and was advised that some will call me back with feedback. Still no one has phoned me. I phoned the store and asked if I can return this unit as I am not able to find the rear speakers and they advised that I am not able return the unit because of this. I cannot even sell the unit for the same price I bought it for, so that I can rather buy some other brand that do offer rear speaker that is available.