I have two good stories from places in the USA and dealing from NZ
The first was when i was doing my 37 furd phaeton up.
ordered SS hood hinges from MACs autoparts. got two LH side hinges in a courier parcel.
Photographed them and emailed them back
The reply was "correct hinge on the way, sorry for the mix up. Please keep the incorrect hinge as a memento"
The next one was with a rear end bush kit for Lynettes 60 impala
ordered from CPP arrived with two incorrect bushes
Again photographed the box and the parts and emailed them with pics
Replacement bushes were sent out and i had them in under a week, didnt want me to send the incorrect ones back as the freight and paperwork would not be worth it.
Have only had one experience that was bad from USA in relation to parts never arriving and no tracking numbers being provided, no evidence of items ever being shipped
Steve