Charging client for their mistake

My husband ordered from Reliable Store they told him it would take 14 days to arrive well after 14day he contacted them as no one was in communication with us about where our order was they said it can take 25 day we finally received the order yesterday after waiting 42 days and having to keep checking in with them as they have no client service. We checked the box and the wrong product we emailed them with screenshots, they now want to charge us 35% handling fee and we must ship the products to them. So we mush pay for shipping the wrong product back to them and pay 35% handling fee for their mistake. We are fed up with this company they are ******* that don't care about client service and now want clients to pay for their mistakes. Anyone else had this experience and have advice about how to get our money back?