My Flower Tree — Delivery missed by 1 week and no updates

Its been 5 days and my order# 677948 is still lost. Order was placed on 31st July and was to be delivered on 2nd August.

It was a Raksha bandhan gift which has long lost its significance now.
I dont have any updates from myflowertree and it is pathetic customer service.
Their chat responses respond after one hour with a standard - "we are looking into it".
They have a call back - but no body has called since 5 days.
They have a complaint link - but no body responds to the complaint.
There is no option to even cancel the order which clearly they have not even started work on. I am completely blocked and dont know how to proceed.
For a site that advertises dame day delivery - this is completely not ok.
In these days of trusted delivery from Amazon and others, this site is not relevant anymore.
I just want to cancel my order and get my refund.