Paytm — about refund or cancellation

Address:

Dakshin Dinajpur, West Bengal, 733158

The order no. of the product is [protected].I want to know about the refund or the cancellation of the product which was ordered on 28th July and requested for cancellation on 31 July.
Today it is 07 th August . Already 7 days is gone. But till now the status of the product is pending return. I want to know that If the product takes about 3 days to reach in a place so why it will take above than 7 days from the same place for return.