damaged goods and bad service

we bought a kitchen unit cash at best electric ERMELO, worse decision ever. They delivered the kitchen unit without the sink on the 04/11/2015, two weeks later the lids started falling. on the 18/11/15 i called the branch manager to report the case. he advised they will come collect. beginning of December they delivered a damaged sink which they advised we cannot use and left the unit. called again the branch manager same story,then i called the head office to report this, they advised they will find out from the branch and come back to me,of which i am still waiting for feedback. we went to the branch again to speak to the manager which he promised to sort out. now we sitting with a kitchen unit we cant use. please help.with this