[Resolved]  Zopnow Retail — neither grocery has been delivered nor getting my money back

Address:	560017
Website:	www.zopnow.com

Hi, my name is mahi, i ordered the groceries on[protected] @ 19:58:01 by zopnow's website (Order reference:[protected] & i was told i'll be receiving my stuff on[protected], in between 1 pm - 4 pm but i didn't get my order, so i decided to call to customer care number[protected] but couldn't get through because i didn't have that mobile number from i placed the order in first place, so my brother e-mailed them (On "[protected]@zopnow.com") & shared the alternative number on that mail, now today we receive the call from followed 2 mobile numbers [protected] & [protected] & they said they are from zopnow & just because i don't have the mobile number (The number from i placed the order) they can"t deliver the grocery or i need to share my credit card's details like it's number or what name written on that card and all, but i refused to share my credit card details & instead of that i offered him to share my invoice details or the address where the groceries are suppose to be delivered & all, but he says that because of gst & all they don't have enough groceries to deliver so i said gst wasn't effected when i placed the order & why i wasn't informed about that at the time of placing the order then he says i can't do or say anything about it if you don't share you credit card details we won't return you money as well & forget about the groceries.
Now please help me with that
Thanks & regards
Mahi