Enter monthly fee using numbers 0-9.
Maximum monthly fee is $2,000.
Minimum charge is $5. (But charging zero is okay, too.)
Trial period must be a number between 0 and 90 days. (Enter 0 for no free trial.)
Maximum trial period is 90 days. (Enter 0 for no free trial.)
If you allow a trial period (highly recommended to increase subscriptions), it must be at least 7 days.