[2024] Thaumaturge of the Vaal Supporter Pack on Steam?

" Bloodmila#1530 wrote: Hi, I bought the 'King of the Faridun Supporter Pack' on Steam and didn't realize there were higher tiers available (Steam only shows the 3 packs first packs). I heard you can upgrade the support pack to the next level, there's a way to do this on Steam and give my friend the extra key?

EDIT:
https://www.reddit.com/r/PathOfExile2/comments/1h1qcxi/can_i_upgrade_my_supporter_pack_if_i_bought_it_on/

Hiya, it looks like you've been able to sort this out. :) Thank you very much for your generous support!