Of course you can. You should have check your junk mail long time ago, other LYN members already told you to do so, not sure why you did not do it, until now that is.
What you can do now is to live chat with Samsung customer support to correct your redemption info so that you are eligible again or resubmit the form. I advice using the former steps to avoid conflicts.

Hey guys, my S21+ is heating up when using camera about 5min. Is that normal? I already done software update.
I feel a bit worry. Anyone facing same issue?

I also installed T-Max UV TG (from Shopee) last night, turned out a lot dust within the glue, and now the dust is all over the screen underneath. Fingerprint sensor also couldn't work despite putting a 50 cents coin on top of the scanner before curing it with UV light. At least, this TG is case-friendly with the official silicon case with S-Pen.

Can anyone recommended reliable good TG brand that can work with fingerprint scanner?

Thanks.