Meesho - Irresponsible behaviour from meesho It s been a month package has not been picked up

I placed an order from meesho app on the **st of July. The product was a pandaoriginals Musical activity walker. The product was delivered on the location on **th august and due to some size issue we placed a return request on the same day and we got a message that the return will be done in *-* working days and then the delivery partner came here but he did not take the product with him saying that it is a size issue and we need an auto for carrying this parcel he never came back to collect the parcel. I again placed a return request so this time the delivery partner showed an inappropriate behaviour like yelling over the call, not coming to the society to pick the same. So, I again raised a complaint for the returning of the parcel but again the same problem related to the size of the vehicle. Now it's been *-* times that I have placed a return request and the same excuse is being given to me.
It's been a month that the parcel is at my place.
It's really a very irresponsible and indifferent behaviour from meesho's side. Now the Help centre helpline of the meesho app are not picking up the call also.
I would really appreciate that you please go through the complaint and give me a resolution immediately .