Paytm — Not providing any pick up service (to return item) and asking me to return with my own money

Order No.[protected] I had ordered PHILIPS AIRFRYER from PAYTM on 10th october of previous month buy paying 13, 000rs in cash.I got it some 10days late now i want to return that air fryer which is taking very time than we expected and i put some refund request as they mentioned in website for returning the item they will courier service. For that you replied that pick up point is not available with address specified and you told me to courier back.And you mention that you will refund only 100RS if i courier on my own that will cost me 2000rs(object weigh more than 5 kg)out of which you will refund only 100rs . It is your mistake that you didn't have any pickup point from my place. so for this problem i got that to Bengaluru by spending some 100rs on my own charge and i am asking to pick up from banglore where pickup service is available. But you are not responding for this also so please send the pickup boy .please dothis as early as possible because it will complete 10days.