Sales contact at MCI/UUNET?

I realize this is most likely off topic and is likely to get me
flamed but I am in desperate need of the contact information for someone
in sales or management at MCI/UUNET. We have been paying a reseller for
a UUNET circuit for about 6 months and I guess he hasn't been paying
MCI/UUNET for this circuit and he's telling us they're about to
disconnect circuit and this would be absolutely catastrophic to us right
now; so if anyone has the contact information of anyone that would be in
a position to assist us in transitioning this circuit or making
arrangements to get something done; we would be forever in your


pong I'll try to find you a sales-ish-person.