MRP HOME TYGERVALLEY CENTRE

I'm disgusted and disappointed with the horrible customer service from the manager at Mr Price Home in Tygervalley. Went there to exchange my gift , I had to stand in the que for 30 minutes and then they sent me back to the floor to take the items that I want. I bought a Russel Hobbs toaster but the lady who was helping me refused to give me the proof of purchase. My question is that , what if the toaster is faulty or not working. That means I wont be able to return it to them. I was so angry when I left the store and their service is bad.