Quikr — mattresses picked up but not delivered

Address:	400101
Website:	Quikr mobile app

I sold bed mattresses on quikr having ad id[protected] and transaction id[protected]. The delivery was scheduled for 11 december 19 in the beginning but was not delivered. Then it was rescheduled to be delivered on 15th december. Again it was not delivered and rescheduled for 19 december. Once again it was not delivered and rescheduled for 21 december. Till now it's not been delivered. It's being rescheduled again and again. Mattresses had been picked from my place on 10th december. Please help me to get the selling price which is rs.1300 against my matterress.