Poor service

Very poor service from the after sales department as I still have a guarantee on my couch which is now caving in less than a year after buying it. I wrote an email about the couch and took pics to show them what the couch looks like and I received a call from a lady who said they would fix it after the sales man that sold it to me told me said that should I have issues with the couch they would replace it but now they are going to repair it. I was called twice during meetings and could not pick up the phone and now they do not bother to contact me to arrange for the couch to be fixed. Stop lying to your customers when they make a purchase! I am just so upset over this matter and frustrated and they could not be bothered!