FD's have some..odd.. ideas about payment timescales.
This is how it usually plays out..
Day 1 - Invoice Submitted. Marked due within 14 days. Schedule call to chase payment in 30 days.
Day 31 - 'no we havent paid, i'll write the cheque right now'
Day 38 - 'i wrote the cheque but forgot to do anything with it, i'll put it into an envelope right now'
Day 45 - 'i put it in an envelope but didnt post it, i'll add it to the outgoing mailbag now'
Day 51 - 'we only send mail in the mailbag on fridays'
Day 60 - Ta Da! cheque arrives second class post, postmarked as having been sent that wednesday. Amount has been 'accidentally' written incorrectly in the favor of the company.. so 3435 becomes 3345.
A typo during invoice entry onto SAP you say? how convenient, I'm looking at the SAP DB right now, and it seems oddly correct....