My rule to check Form of Payment is not working - why?

The form of payment is returned to us in the Galileo API as a type number. The list of these is as follows;

Form of Payment type number
1 - Cash
3 - Nonref
4 - Miscellaneous
5 - Invoice
7 - Government (Travel) Request
8 - Pseudo Cash
9 - Credit (non Credit Card)
11 - AK Bons
12 - Pay Late
13 - Exchange
14 - Money Order
15 - Travelers Check
99 - Freeform

So you need to use the number, rather than Cash !