Returnable items?

Hi there. Yes, those boxes that you mentioned are returnable. Visit Returning your DIRECTV equipment | DIRECTV Support to learn what DIRECTV equipment needs to be returned and how to return it to avoid being charged a non-return fee. Jason, DIRECTV Community Specialist.

Those Receivers and clients can be returned to a participating FedEx or UPS location. Please bring your equipment with power cables and be sure to have your account number handy when the store clerk asks. Additionally, ensure you get a receipt as this is proof of your return in case you are accidentally charged a non-return fee.

This sounds like a business.

was told no cables...

Power cables has been standard in the return spiel, but no biggie if they aren't all there as they haven't charged any NRFs for it.

@ChrisAtKasted 

You say "in stock". Are you a business? If so then you need to go through official channels on anything that might be returnable through your company agreements.