Gocash card errors

Alright, im trying to use the gocashcard i just bought at gamestop. And heres what happens. I log in as instructed, click the prepaid system, click gocash, and then select "buy as gift" and then type in the name and game then all that comes up is this.



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Is this wrong? OR do i just proceed to click buy now on the other screen that opened up?