Pay TM — refund is not giving

My Order No is [protected], and the product is returned due to low quality. the product is reached to seller but the refund is not provided. they asked my bank details and given it 3 times and then they ask to fill a google form and am filled it. but yet now the refund is not provided. please help. and from my pay tm wallet, Rs 25 is deducted with out any reason. the paytm is not providing a customer service.