I purchased my Samsung S8 through Koodo in December and am going to use my Samsung warranty to replace the battery. They said I need a proof of purchase but I the only thing I had was the papers I got when I signed up for Koodo. Are there any ways view/print a receipt online?
I would suggest you check your email, there should be a HFO.... number with the order of the phone. I think that one would have the IMEI of the phone and date of purchase and could be used to validate with samsung.