Frustrated and dissatisfaction

I have requested quotes on the 2nd August , I gave them all the information needed. On the 3rd they requested 50% deposit which is 8500 , I paid it immediately. They promised to come install the tv stand on the 4th, they never came , I called them the next day and they promised to come later in the afternoon, which they didn’t. They came on the third day, with wrong sizes material. They promised to sort it out, which they didn’t, the material looked like it’s been used previously. The boards had chipped, they did edging themselves in my house, left the glue on my tiles . They promised to come back to fix it , they are now avoiding my calls .