This translates as:
I made a purchase for a gift card and when I go to redeem it, it says that the pin is invalid. I want to cancel

Hi Valtemar,

I don't have much visibility into that part of the system. However, you can submit a ticket or chat with customer service via Live Chat by clicking the green chat button at the bottom right to get this sorted out in real time. If you need additional assistance, please PM me and continue communicating in English so I can assist you accordingly. Have a great day!