Meesho aap - Return pickup is being cancelled by courier partner

I ordered a tshirt of L size....it was too large for me....I apply for return then my return pickup was on *th dec but it was cancelled by courier partner and again I reinitiate it and contact to meesho help line they said me this time it won't happen...again on *th it should be picked up and on today also I didn't receive any message or call so I again contacted meesho help line they said that it will be picked up...then it was again cancelled by courier partner I again reinitiate it again it is cancelled by courier partner....really disappointed....I want my refund and that useless stuff to be picked up as soon as possible....pissed off with this app ..I will never recommend this app to anyone