Donation amounts?

Can anyone explain amounts of donations requested. To clarify when I request a rare I can receive up to 7 rares per request. I see other members of my guild request a rare and they get 14. Same thing goes for commons. I get 35 but they get 70. My renown is 19 and my characters are 4 15s, 1 14, 3 13s, and 1 12. I’m also past the Doppleganger in the Estate. Does the increased amount having something to do with VIP? I’m strictly FTP. I’ve asked in our guild and no one has a true answer for this. Can anyone enlighten me on how the donation amounts work? Thanks

You are correct. The limits double with VIP.