Welcome to Project-GC Q&A. Ask questions and get answers from other Project-GC users.
If you get a good answer, click the checkbox on the left to select it as the best answer.
Upvote answers or questions that have helped you.
If you don't get clear answers, edit your question to make it clearer.
It is not possible at this time. You need to be registered on PGC (and therefore also on the Geocaching.com) to be able to buy membership (also as a gift). You have got few possibilities:
* Make your brother register on Geocaching and on PGC and buy you a membership
* Let him just pay for your membership from your account. It is less prosaic, but works best.