Rejecting non-functional parts should not count against the hub.
I've had a couple of customers that requested "functional" parts with features that would clearly not be functional. Extremely thin walls, clips, and threads for isntance.
Rejecting these should not count against the hub because printing and shipping parts that we know will not work isn't a good business practice.
Rhys Richards commented
Rejecting non-functional parts should not count against the hub, because the hub did not design the part!
The customer designed the part & right or wrong, should accept there mistake, the customer is aware of design limitations, from 3D HUB's info pages!
And accepts for us to print there order with errors!!
A hub should not be penalised for the customers design errors!