STERNS PAARL MALL - FAULTY POLICE WATCH

My husband bought a watch at Sterns Paarl mall about a year ago. He had the watch for about 2 months, and the watch started to loose time and the meganism was damaged. We took the watch back and they tried to fix it. Not successfully. Its been almost 9 months that the watch is with repairs, and after logging a complaint they phoned us and said we can fetch the watch.... we collected it on Saturday, 23/06/2018, and on sunday the back of the watch became loose and the watch loses time. AGAIN!!!!! The consultant at sterns say they have many complaints on the "police" product, but refuses to either give us our money back or even let my husband choose a new watch for the same value. This is only a short version of my complaint as during the 9 months, we went there about 4 times and everytime the watch have a different issue. They even replaced the watch with a new one, one they choose themselves, not even one my husband likes (different one from the original one). and the same problem occur with the new watch as well. I am not going to leave this here... we need action and a money back refund. This is by far the worst product and service received in MY LIFE!! and its not a cheap watch, R2500 later.