The name of the game in any manufacturing wholesaling or rotating organisation is to be able to sell your product in whatever requirements you dictate or project in you're planning. Sales or selling is an art given to few or limited and selected people. The ability to sell is a gift in that once you have made the sale or exchanged contract you have made a legal and binding agreement enforceable by law with respect to the terms and conditions designated and delegated but the seller.

Of course there are government regulations which mean that there is a reasonable allowance made for unfair treatment, misrepresentation or underhanded dealings that might be brought about by poor quality products or sly and misleading sales persons. Respect must be given to legal representation of the exchange, but it is usually recognized as good policy to refund or exchange with suitable proof of purchase or invoicing deliveries.

The need to adhere to terms and conditions is justified in the right to ownership or possession, whether you're purchase from a supermarket counter or a personally attending to by a super sales you have the right to dealing the offer to buy or choose to accept whatever it is you wanted to purchase, providing you had means to pay for it or could negotiate and exchange of comforts.