Nasty Customer Service from this Pawnshop

I recently moved to Klerksdorp without any transport of my own and with the little pocket change I had left I had to look for a bicycle to get by since I lived a while off from my new job. Bargain Hunters had the cheapest bicycles but since I was late for work I didn't inspect the bicycle much and bought it on impulse. I barely rode it for 3 days and I had to replace the pedals since the threads were rotten and ruined. After that it gave more problems and I tried to return it today on a Saturday since I won't have a chance in the week. When I walked into the store the two people working there already gave me a evil eye. I explained why I was unhappy and that I would like the return it or atleast pawn it back for a bit of money back, uninterested and rude they told me the \office"people aren't here and that I should come back on Monday and that I'd have a better chance of pawning it off to their competitors down the street. Since I brought it here I was adamant that they should be the ones to get the problematic bicycle. When I asked if I could store it there until Monday since it's now just in the way in my small apartment I got even more rude why's and why nots. """