Archies Online — I am complaining about non refund of money.

Website:

archiesonline.com

I had ordered a cake from archies, to be delivered on 17th december 2017 to chennai.
I cancelled the order on 15th of december by calling their costumer care number, but i did not recieve a confirmation.
I tried contacting then on 16/12/17 which was a saturday; but i could not reach them.
Hence i sent a mail on sunday.
The cake was not delivered, and is still not delivered (It has been more than a week now.)
On contacting the costumer care helpline, i was notified that my call was never registered.
I have tried contacting them again, but after putting me on hold for more than half an hour, i am still unable to contact them.
My mail inquiries to their help desk have gone unanswered.
I am unable to track my order on their website either.
Kindly help me get the refund.
My order number is or[protected]