DMs not on "recent player" gift list?

Hi all, Currently trying to anonymously give a copy of Tasha's to a DM of one of my games, since don't want to risk looking like I'm trying to "buy" any in-game effect.  However, when I drop his username into the "recent players", he doesn't come up. Does this list just have a very short number/timescale (it's about 10 days since the last game, and I've played with about 10 other since), or is it that, for some reason, DMs of games I've played with don't come up - just players? Any help offered either with that question, or just resolving the issue appreciated

I don't think it works correctly. When I gift things, I don't get the players that I play with every week, and I get people who I have never played with in a game. I have to use an email address.

Roll20's store is a disaster.  You can't find DM's in the gift list and the players seem randomly selected from everyone you've ever played with.  While you can give a gift subscription from someone's profile page, you cannot gift a marketplace item from there.  Nor can you give a Roll20 "gift card.". You must either buy a specific item or give money towards a subscription.