T-Kameez — taking extra charge

Address:

Kolkata ,Subash bhavan Kolkata Port Trust, Kolkata, West Bengal, 700043

Hi team,
I ordered four tshirts from here but two of them are bad in quality
So i returned them, against that the amount i got in my wallet is less, then using that wallet money i ordered two tshirts and pay the extra money because the amount of that two tees is more than the money i have in my wallet. It’s been 15 days then i got a message from tkameez that they will deliver the product today i mean on 8th july, 2019 and they mentioned that i have to pay 90 rs for delivery charge. Why would i pay the delivery charge again and again because of your fault.