We have about $140 in southwest credits over two confirmation numbers that will expire in about a week. Because of the way the credits break out, southwest views them as three ~$45 mini-credits, each of which would cost $50 to extend (making extension not worthwhile, obviously). Southwest's fare rules aren't as customer-friendly as I remember them being... the only reason these credits are about to be lost is because of their policy of applying the earliest possible expiration date to tickets purchased with credits and cash. For example, if I buy a $200 ticket and pay for $50 of it with an old credit, the expiration date of that old credit applies to the entire $200. Anyway, I think I recall people talking here about ways to combine credits in such a circumstance, making for one $50 extension fee rather than three. Does anyone have any tips? Is there some way I can donate these?