Damaged R17 000 genuine leather day bed sofa

My dream sofa was delivered on Tuesday, 09 June 2015. I had car problems and was not going to be able to drive back from work to receive the delivery. I requested for a third party to accept the delivery on my behalf where I left the keys for the apartment to facilitate the delivery as I had used taxi's that day. When I got back from work around half six or so I inspected the sofa and discovered that the item was damaged. I called the driver immediately and enquires about the damage and he simply acknowledged the fault and said I must contact the store and they'll sort the goods out for me. I also took a picture and emailed the store about the damage on the same evening. I followed up until they responded via email today saying that I was not there to inspect and the delivery note did not state that it was damaged so I must bear a portion of the repair costs. I have just paid almost R20 000 and I must pay additional costs. The sofa was not damaged by me but the delivery personnel of the company and thus their responsibility. the consumer act gives me the right to return damaged goods within a reasonable time even after delivery and they are denying me that right.