Shop CJ Network — substandard product return, bank details given a month back but even after more than one month no refund.

I bought set of leggings from shop cj n found that the quality was poor. Also, size was small. Product was picked up on 10th december, 2017. Bank details were provided to them by calling them again and again, because they gave two three missed calls n then sent me msg that no one picked up their calls..!! So i had to repeatedly call them to give my bank details..!! Since then i am just hearing one sentence.."your amount will be refunded back with in five working days..!!" i don't know till when their five working days will continue... Its more than one month...!! More over they keep me on hold everytime i call them... I think more than the product amount, i'll end up paying for my calls which are on chargeable basis...!!
Earlier also in 2016, i had ordered jeggings which were too too small but even after repeated calls no one came for pick up n those are still lying with me uselessly...!!
Is there anyone who cares???