**** to and Messing customer around

I bought a Swatch watch for my son in Feb 2014 as a birthday present. The watch stopped working a few months ago and I took it into Swtach thinking it was the battery. They advised me at the store that it was not the battery but they would send it into head office. They also asked if I had the receipt a if they could not fix they will replace the watch with same or something for the same value, or I could pay in the difference for another watch if it was more. The watch came back and they were unable to repair. I could not find the receipt but they offered a discount of 33%. But they said that proof of payment would also be fine as proof of purchase instead of the receipt. I then went to my bank and obtained an archived credit card statement that showed I had purchased the watch in Feb 2014. I took this into the store only to have Swatch completely back track and now say they have to go back to head office to double check, I was given incorrect info, they are not sure, blah blah blah. Can someone at Swatch catch a wake up!!!!