Refuse to refund me on faulty product!

<p>In November I purchased 2 couches from Hirsch in Durban. I hadn't used them as I moved in with my boyfriend and we only used them in our new place in April 2017 - we hardly in the lounge as we have a tv in the bedroom so they couches should be 100% no faults yet my boyfriend said that they look like they faulty in the middle of the couch as they go in? I called Hirsch and they came to collect and never got back to me. I called everyday for feedback and they said they were faulty, they then refused to give me my full refund and said they could only give me a refund less the handling fee???? My boyfriend said cool let's take them back they have a 5 year warranty so I listened to him and they were sent back to us and 3/4 days later we sat on them and just heard a crack sound? How the hell can this be repaired if it's cracking??? I called Richard Fromm hirsch and still refuses to give me my full refund! I also had the couches scotch guarded so I'm still losing out on that money too! Who can help me sort this out??? I'm so frustrated and upset!!!! </p>