We too have been doing business for this company for many years and have gone thru a number of name changes & vendor managers with them (at the Chapin, SC office), but we've never really had a problem getting paid. An occasional shortage on a few copy fees, but I advise them and it's normally included in the next payment.

We did have a strange payment in Dec. 2012 for the November 2012 work we did for them...we received 485 checks from them, 1 for the order & 1 for the copies. Not all orders had copies, thus the odd number of checks sent.  I contacted our VM and she took care of it. We FedEx'ed the checks back to them on "their" account, the boxed weighed 12 lbs. We then received 2 checks about 2 wks later covering the entire amount.