One of our PI's has a clinical trial and needs to purchase Target gift cards as human subject payments. The division administrator has to order 500 gift cards for $50 each multiple times in a year. She made the first purchase a couple of months ago and ordered the gift cards online and had them shipped directly to HealthPartners. Target sent us an invoice wanting payment in 30 days, so she paid with the PCard. Now she is being told to do a check request, rather than raising the PCard limit each time she orders these gift cards, and take the check directly to Target to buy the gift cards.
What is the best practice for this? Wouldn't payment for the gift cards on the PCard be less risky? And what kinds of documentation will we need for an auditor in this situation?