Thinking about putting a sticker or card on my amazon packages, will I get in trouble?

Hey all, I’m a reseller doing only FBA stuff. We are thinking about putting a sticker on each of the items we ship that has a QR code and says something along the lines of “Scan for free lifetime support”. When they scan it they would be sent to a page on our website that they can “register” their product. This way we CAN actually support them (We sell some technically complex products) plus we get their contact info.

My question is, has anyone done this? How did it work out?

For context we already have to label each product individually anyway so it wouldn’t add much time or cost to the process.