Paytm — Cash back not added

Address:

Ahmedabad, Gujarat

I have bought iphone 5s iphone from paytm on[protected] est delivery is 16 jan but they deliver it on 20 jan(late delivery) After that when i claim for cash back of rs 6000 they say your wallet limit is exceeded n you have to upgrade your wallet for that i have to submit document to their executive I have done all the step to upgrade my wallet n they say our executive will reach to u to pick up all document But from last 4 days i am just waiting for a call back from executive but no response from them They are also not responding proper on email toll free no always on busy mode Disappointed with their service If i want to return this product their is no return link available on website I am worrying for my cash back help me out Order no[protected] Email address- [protected]@gmail.com