Pick and pay customer service bad

Pick and pay is not able to assist me with my return. I purchased a glass kettle from them who's lit came off a few months after the purchase and now , i can only return it with my slip or if i swiped my smart shopper card. firstly the ink on the slips are not lasting long, which in my case it faded away, and secondly we do not use our smart shopper consistently, which in this case made the 2 reasons impossible to stand on. i would like to warn other shoppers out there if you purchase any electrical stuff, take a photo of your slip and email it to you. Otherwise your goods will not be returned and money down the drain. i still have the box brand new and i also question, why they do not put a stamp on the box as a guarantee.