Of course thats correct you would go back to where you bought the goods , but as I said if they exchange or refund staight away it would only be as a goodwill gesture as they are under no legal obligation to do so, yes they should arrange to return to manufacturers and if proved to be faulty the manufacturer would reimburse the supplier who in turn would reimburse the buyer, unless the supplier has a warranty clause with the manufacturer which allows them to exchange or replace(most wont have),