Gift Code problems

Hi everyone:

I bought a 3-month Gift Card to a friend of mine. But doesn’t work.

It’s quite frustrating. Has anyone a solution?

Help center didn’t help at all and in addition it can not connect with G Pay.

I think I know what is the problem but not the solution. I bought the Gift Card and send it to my email, but she registered with her email, of course.

Can we changed that? What is the solution?