iTunes Credit through Costco / purchasing credit through another vendor
Hello. My issue is that we use iTunes regularly to purchase software for our small business. We took advantage of the Costco offer $79 for $100 worth of iTunes credit to use for future purchases (via vendor credit). The first part is fine, an expense through Costco (vendor), pay the bill for $79 and done. However, I'm buying a vendor credit through another vendor, so how do I apply and allocate this $100 credit to iTunes from the $79 Costco expense? Having a hard time wrapping my head around this. Or perhaps there is a better way of dealing with this. Any help would be appreciated.
