Bad customer service!

I am so upset where I am sitting here!!! We have always gone to Matrix in Brackenhurst. There is a short young man that always helps us, always friendly and always has an answer for us. We always get what we need and leave happy. It is not even 5 min from the house.

This morning my husband and myself went there to exchange a HDMI splitter we bought yesterday that was not working on his LT nor mine. While i was still trying to explain what we did the tall RUDE young man ( I think his name is Chris ) snached the splitter a stormed off to the back with it. An elderly man i assume the manager ( Marco ) came and asked if he could help and i tried to explain to him what the problem was when the young man shouted from the the back IT IS WORKING throwing his hands up in the air!!!!! Then I asked if we can not maybe exchange it for another one as it does not work on our LT's. He said no as he will just give us the same one and it is working..... He was VERY , VERY RUDE!!! The manager tried to defuse the situation by telling us we must come in with our LT and screen , that maybe it is a setting they need to change. IT IS NOT!! I also got a splitter from them , a different one and it worked. This cable they gave us does not work on out LT and screens. The screen does not even pick up the cable , it says no signal going into power saving mode!!! But this young man had no time for us because as soon as I said I am returning the cable his whole attitude changed! He snached the bag from me and ripped it open while walking away.... The manager said he is sorry they just busy when I complained and I said it is not the customers problem. I honestly think that if he is going to have that attitude towards PAYING CUSTOMERS he needs to find another JOB!!!!!!!!!!!!!!!!!! I will NEVER EVER go back there and will inform my friends and family the same. I would rather go all the way into Alberton to that Matrix as they have always been helpful even if I had to return my LT that was not working , they checked it and they were friendly and professional the whole time even when it was something stupid I did that it was not working. Did not make me feel like an idiot in front of the whole shop by shouting IT IS WORKING AND THROWING THEIR HANDS IN THE AIR!!!! I work for a very big international company and if we had to treat our customers or suppliers in this manner we would be dismissed. Customer service is so very important and you can not treat customers in this manner no matter what. If you having a bad day suck it up and do your job with a smile. If you can not excuse yourself and go and compose yourself , re-set and carry on.