When the service was changed, at the subscriber's request, a new service order was generated. On the service order (and one assumes) in the current billing records, there should be the new USOC for the trunks. Find out what that USOC is, and then after making the usual 15 attempts to find the oldest person in the commercial department, ask her if the cost per trunk is commensurate with the current USOC's.

Just treat the whole exercise as a billing audit type of job. Be patient, and have a few Valium handy. It is a battle of wills. You need to wear them down before they wear you down. Good luck!


Arthur P. Bloom
"30 years of faithful service...15 years on hold"