Open Billing → “Buy Credits.” Credits never expire, and bigger packs cost less per check:
| Package | Credits | Price | Per check |
|---|---|---|---|
| Pay As You Go | 1 | $5.00 | $5.00 |
| Starter Pack | 10 | $45.00 | $4.50 (10% off) |
| Value Pack (Best Value) | 100 | $400.00 | $4.00 (20% off) |
| Organization Pack | 500 | $1,750.00 | $3.50 (30% off) |
Your Billing page shows your current balance and full transaction history (purchases, usage, and refunds).