Just agree not to return it if you're sure. Then they'll either send it or they won't. I often find the part number I want is available more cheaply for other VAG cars, or then cheaper still by searching on the manufacturer part code once I've got it from the VAG number. So vag radiator fan, 6q0 959 455 is meyle code 1002360019. Got EGR and catalytic converter marked as fitting a polo and Cordoba rather than
Ibiza with an azq engine.
It is dead here. I often have more luck using VW, Skoda and Audi forums based on the engine code or knowledge of the models, eg polo 9n.