How long when a return is received back should a business seller have to refund? For example if I received a return at 2pm today? 

Is there any difference if a return is not delivered to not being available as to receive the delivery? Is it still two business days? 

As recently had two cases opeend when not been given two business days to refund. The refund to the buyer not the issue but ebay keeping fees when not being given time is a issue. 

Thanks,