Online service issues

I ordered a TV online 2 weeks ago and after providing everything they wanted i got an email last week telling me I had been refunded with no reason why. I emailed them the next day and no response. I even went as far to email the salesperson I had dealt with and no reply. I called today and was asked to hold then they hung up. The tv was on special. it is now 400 rand more. I want my TV or i want a proper reason why it was cancelled.