Debt collector - recorded message telling you to call another number to pay your bill over the phone - set up phone payment only - no other options

allied financial services - car debt collector

Anyone ever get a call from this number? I'm sure its one of my creditors but I'm not sure which one. They're calling me at work & I'm not supposed to make or take personal calls. I need to call back whomever it is & ask them not to call my work number.