Follow up to my first post:
They will not answer this number if you call back but it's obvious the main number is 810-244-4200. I called that number and they would only say "This is HR".

Although they are not a debt collector they are contracted for companies to collect debt so that is why I put them in this category.

Their numbers:

810-244-4200
810-244-4201
810-244-4202
810-244-4203
810-244-4204
810-244-4205
810-244-4206
810-244-4207
810-244-4208
810-244-4209
810-244-4210