Milagrow — Return of floor robot

My company had bought floor robot worth almost rupees one lac. But it lacks the very basic functionality and what is shown is not there. Bought it on basis of that was shown as due to covid demonstration could not be given. Milagrow agreed to take it back after cutting some price . But now they are not responding to their offer.
It would be helpful if they keep upto this offer at least as the basic flaws in the product can not be rectified.