Bajaj Auto — dealer gupta wheels sewri for false assurances.

Dear sir,
Recently I have bought three wheeler loader tempo from Bajaj dealer name Gupta wheels at shewri Mumbai.At the time of booking the tempo lots of assurances were given by the dealer like timely insurance, on time rto registration and all loans formalities required.
But after facing lots of problems and a month passed the dealer was able to deliver us a tempo on 26/03/2018.As soon as we received a tempo the second day they called us and told that by mistake we have send a wrong tempo registered in the name of some other party so please return this one and we will send the other tempo, as if they are playing a child game.
After this exchanging the tempo now the problem arises for registration at rto and now its today 07/04/2018 and the tempo is lying idle at my shop and I have still not received the registration no. Of my vehicle.
So overall I want to justify is that, that how can such irresponsible dealers can be appointed by Bajaj auto whose business is on such a large scale and this kind of staff are the biggest hindrancesfor your business as they are giving false assurances and which is spoiling the name of Bajaj auto.
Mr pankaj, manager at Gupta wheels at Malad west and his colleagues Mr ashish, Mr vikash and many others are all responsible and doesn't have level of knowledge that how to speak the customers and to convince them.
So please take the required action possible or else these kind of dealers may put your business to hell.