Ferns N Petals — order delivery issue for anniversary gift

Address:

FNP Estates, Ashram Marg, Sultanpur Mandi Road, Gadaipur, Chhatarpur Farms, DLF Farms, New Delhi, Delhi 110030, New Delhi, Delhi

My order wasn't delivered to my parents (For their anniversary). Fnp claimed that address was incorrect. I confirmed that address wasn't incorrect. Fnp helpdesk then proposed that they will re-deliver the order even though it is perishable order. I waited for 10+ days for them to re-deliver. They didn't. Now i am being told again that re-delivery is not in policy and the issue with original delivery was unanswered call to the contact number provided. Firstly, the reason for non-delivery seems to be changing (From wrong address to unanswered phone call). I don't think the courier team tried to make the delivery, as my address is very clear and landmark was also provided. The discrepancies from fnp also reconfirm by doubt. Secondly, they had agreed to redeliver (Documented in tickets raised to them) and are now refusing to do so.