Answer: 
You must decline the transaction for the following reasons: 
A customer may not purchase more than $2,000 in prepaid cards within a 24-hour period.
Customer ID must be a valid (not expired) government issued photo ID (US or Canadian  issued driver's license, state ID, passport; US military ID, US Territory ID)
Customers may not purchase more than $250 at the assisted check out (ACO).
Explanation:  
 A customer may not purchase more than $2,000 worth of prepaid products in one business day.
POS will prompt cashiers for an ID at $300:
POS will prompt cashiers to scan or manually enter a valid ID for purchases  at   $300.
Customers may not purchase more than 10 prepaid cards in one day.
Customers may not purchase more than $250 at the assisted check out (ACO).
Managing our prepaid card limits on a daily basis is run, similar to our money order process. The 2,000 daily limits for prepaid/gift cards is accomplished through a partnership with  APPRISS.
  Note
:
 The POS Register does not allow a single transaction over $2,000 to ensure CVS/pharmacy is in compliance with federal regulations.
Breaking up transactions to allow the purchase of more than $2,000
in prepaid products to one customer, couple or group is strictly against CVS/pharmacy policy and may result in disciplinary action up to, and including, termination of employment.