Whaaky.com / Way2Online Retail — return product and refund my money

I have purchase 2MI 20000mAh power banks, order number is WH[protected] (order of amount Rs. 1149) but the quality of product not good or not satisfied of my need. I request you to please return my product and refund my money back. For this product I have paid cash to your delivery boy.
Request you to kindly refund my money as soon as possible.