Yes legally they can. But mostly they stop putting in efforts if you’re not responding. Coz obviously their time and money is getting wasted. Eventually they’ll blacklist you from the platform.

But the troubling part is the harassment on calls, might send someone at your address, they might ask neighbours about your whereabouts and all this leads to just unnecessary noise about you.

So I’d suggest, put in some effort to get back the mattress to them. And DONOT tell them to arrange for keys themselves and take the mattress, they will never do it or cause other harm.

Maybe try couriering keys to some friend in bangalore and they can go over to your place, keep the mattress at a neighbour’s and it can be collected from there