Education

I have a issue we’re the IEP was not implemented  for drivers Education. I filed a state complaint. They have agreed to reimburse me but they want me to file a W-9. I’m not following??? I don’t understand. I didn’t provide them with a service. I’m not an employee. I paid for private drivers Education for the provision of FAPE the district was found in non compliance. Where exactly is the laws. I copy and pasted your last response I can’t find publication or the rule it comes up as something else. Help please