I'm not going to give someone a refund when they didn't know you needed internet to set up the product when they bought it.
Is there a reason why you wont give them a refund?
I don't feel like it at this time. I'm a busy man.
You seem rude by not trying to appease the customer. It seems like bad business to not refund a product just because you were busy.
I don't care if they are happy or not.
You wont be able to keep customers if you treat them like that. You need to do a better job keeping people happy.