What You Need
Steps — Do This Exactly
Step 1 — Open proton.me/business/try
Step 2 — Pick any VPN Business plan (all have the 14-day trial)
Step 3 — Go to Namso Gen → paste BIN 515462002010xx30 → generate a card
Step 4 — Fill the Proton form — use a random business name, burner email, any name
Step 5 — Paste the generated card at checkout → submit
Step 6 — Wait for the “Your free trial has started” popup → done
Trick: Proton sends a reminder email on day 7. Cancel before day 14 or it charges the card. Since the card isn’t real, it just fails — but cancel anyway to keep things clean.