DAF YOMI BABA METZIA DAF 67 Choshen Mishpat Through the Lens of The Daf Yomi- Ribis AND RETURNS

(this should be learned for all the sick people on this blog who need a refua shelama and the 3 boys in a japan jail who need to be rescued)
Q:Is it a case of ribis for a jewish owned store to have a return policy

A:S"A Harav yes it is a loan even though the seller wants to earn a profit and the buyer has the option to return it but Rav Moshe the Chavas Das and most poskim argue
and say it is not ribis most poskim say if their is a time period when the return policy does not apply then their no ribis and it is a good sale by exchanges there is no ribis whatsoever