Poor communication by staff members

I bought a jump rope a while ago(the digital rope that counts your skips) at Totalsport and used the rope a few times over the period of a month. When I recently wanted to use it I've noticed it is not counting the skips as it's supposed to. At first I though it was the batteries and got new ones, which was in vain. I went into store where I purchased the rope and was told that they couldn't replace it because I didn't purchase any wipes along with the rope which is totally ridiculous!! And what is so upsetting is that no one informed me of this stupid policy as I make purchases there often and even recommended this rope to two friends who also purchased the exact same ones!! I really think that you should train your staff properly to communicate with customers!! I really do not appreciate this as I could've bought the normal jump rope which is less expensive than the one I got!! According to my knowledge there is supposed to be a 12 month warranty on digital all items!! I would not purchase anything at Totalsport again and would rather go elsewhere!