POOR PRODUCT AND SERVICE _ WANT REFUND

Bought couches from Nomie. She sent an email to check on satisfaction of goods,as I was not happy with the couches due to the quality of the leather, I advised her of this. They appeared to have an issue as others i had seen in the store and discussed with her. I advised that I'd be willing to choose another set or replace these ones with a similar set. Her response on the 2/06 was that i couldn't choose a different set as it was after 7 days & she requested i explain why i felt the leather was poor. We met & discussed the matter after which she said she would speak to her manager & revert back to me.On the 26/06, she emailed me to confirm that they would be replacing the couches & it would take 6 -8 weeks, however there was a mechanism that needed to be ordered from Germany with quote.Which i agreed to. I followed up on the couches on 17/09, advising that if i did not rec them by month end i would have no choice but to request a refund.On 30/09 she advised that I'd rec couches by 9/10 & then advised collection 13/10. I went to store to pay the diff,was shocked to find that the couches & mechanism (local one not German) were completely diff . I requested a refund and they refused