I don't think they exist, but worst case scenario, buy a physical one, open it and note down the number (code).
Make a nice little virtual gift card using paint and or photoshop and send it to them with the code on it via email.
Hope this helps your issue
Keeper league 16 teams (H2H, keep 18-19 NHLers, 25 minors)
Scoring Cats: G-A-PTS-PPG-PPA-(+/-)-PIM-SHP-SOG-FW-GWG / W-L-SVS-SV%-GAA-SO
C- Crosby, Spezza, Statsny, Ennis, S.Koivu
LW- MacKinnon, Landeskog, Boedker, Nyquist
RW- Pavelski, Oshie, Niederreiter, Anisimov, (Kovalchuk)
D- Yandle, Carlson, Maatta, B.Smith
G- Price, Varlamov, Lehtonen, Greiss
F: Forsberg, Phillips
D: Rundblad, Pulock, Kichton, Sanguinetti
G: Raanta, Berra, Zatkoff, Nihlstorp, Taylor