Bad service

I bought a TV unit at assops home canival mall' on the day of delivery they found out that the unit has got scratch ' they took a pic and told me that they will replace it. The next day I went to the shop and explained and they told me that I must email the photos to their shop and I did that. So now it's almost two weeks calling them to deliver and they keep on telling me that they are coming ' last time they told me that they have a problem with their supplier ' so I'm busy emailing them and they keep on telling me that they are coming and they don't come it's been two weeks now