Converting an AMZN giftcard number into a clickable URL

December 16, 2017

starting w/
Claim Code:
QBTA-38MDPX-VYMX
(now redeemed)

https://www.amazon.com/gc/redeem/ref=gc_redeem_new_exp_DesktopRedirect?_encoding=UTF8&code=Q8Q9GBW6ULNKWL works

but
https://www.amazon.com/gc/redeem/?code=QBTA38MDPXVYMX
doesn’t work

However,
https://www.amazon.com/gc/redeem/?code=Q8Q9GBW6ULNKWL
works

Note that using
https://www.amazon.com/gc/redeem/?code=QBTA38MDPXVYMX
flips to code
Q8Q9-GBW6UL-NKWL
in the box, so then going with
https://www.amazon.com/gc/redeem/?code=Q8Q9GBW6ULNKWL
works