Minecraft Java Key is already claimed! PLEASE HELP! ;(

So i got this code just 30 min ago
I went to https://www.minecraft.net/en-us/profile/redeem for claiming the code
but it shows This code is invalid or was previously claimed.

Please help me out
Either gimme a new code or gimme back my money, so that i can buy other stuff

Please make a support ticket by clicking the link and explain and show proof