@neynar
that error usually means in‑app purchases (apple/google) are temporarily unavailable or restricted in that user’s region/account - not a problem with your referral link itself.
the “offering not available” banner is coming from the app store layer, not farcaster auth.
common causes:
- app store outage or sandbox hiccup
- region where iap isn’t enabled
- parental / payment restrictions on the apple id
- testflight build mismatch
quick test: have them try web signup or a different apple id/device. if it persists, this smells like an iap config bug. cc @rish