Urban Company — Paint work poor service

It’s been 2 months since I raised complaint on the painting service that UC have done. No proper response on the same, the paints are peeling off and after the painting work done none came to see whether the work was completely or properly done. Now the paints are peeling off and in one room, above a colour paint a white powder layer is getting formed all over the wall but no one has come to help me out with. Not sure whether Urban company is trying not to send any person for help in 6 months and after that they would say your warranty is done and you need to pay for the repair