Shop CJ Network — 17 pc diwan set

I ordered 17 piece diwan set but i got only12 peice.icomplaint so many timess.first they said mam 7 days me u vl be rcv dats misd pcs.but no action.again i cald them but they ppl dont take any type of action.worst service.they said mam we vl cal in 24hour but no cal.no refund no solution..sabse ghatiaa online shopng experience.plz u hav to solve my problem 12 pc diwan set is in not use for mee...so plz refund my oney or send my 5 pc which were misd ...