[Resolved]  Bigbasket.com — Regarding poor delivery service and not able to apply for promo code after cancellation of order by bigbasket customer care executive

I have ordered oil tin of end cost rs. 1859 in which I have applied promo code AMEX300C.
Big basket wont able to deliver product as per order and than as per their customer care executive, item was not available in stock. So they have suggested to cancel order but I was not agreed. After that some senior executive mr. Shekh called ne assured me that I will be able to redem that AMEX300C code again for next order and cancelled that order. After that I have tried atleast 15 times to order same item but every time payment gets failed by shiwing that "Invalid offer for selected payment type". I have called three times to customer care but till date no any prompt actions has been taken by bigbasket. Today also bigbasket customer care executive assured me to call back at 19:00 but i have not received any call till submission of this complaint.