Bad service

I bought a watch from the store at Mall Of the south over a year ago. It stopped working a few months ago and I got in contact with the store with regard to the warranty. I was told to bring a slip which I couldn't find, I then supp**** the sales person with the date of when the watch was purchase. It was a cash purchase. I was told that someone would get in contact with me to resolve the issue, I have no feedback a few months later