Hi Rachel,
Genealogy research often arduous work...I agree with Bill that 16 hours research at a cost of 90 euro probobly bargain.
Did the package you were sent include source documentatoin and/or photo copies of data?
Did the package refer to any unknown data sources that reference any of your known ancestors?
If so...perhaps you unknowingly requested services? Especially if package is coming from outside the U.S.A.
Barbie