Hey everyone i have a few questions. Do i cut the full section of bar codes off of the box to send in? or only the UPC bar code? Also if i need to send the products back in to get a replacement will it void the warranty? i have seen people say if i only cut the UPC bar code and leave everything else on the box ( P/N,EAN,S/N) that they will accept the warranty. is this true? thanks for the help.