Renault

I bought a pre owned 2017 renault clio expression on the 12 of December 2019 from this dealership... Today my car is showing electrical failure on the 20th of February 2020.The problem started on the 17th of February 2020 I then took my car back to dealership only to find my battery was from 3 years back... I forced and fought for the battery to be replaced on which they did,mind you I had been already putting oil within two weeks of using the car. The car still had the electrical failure sign after replacing it with the new battery and they say that a rat had bitten my wires which caused an electric failure.They said i must find an auto electrician to fix it and I will cover the all the costs.I haven't even paid my 1st installment and already I have a car that has electrical failure that I must fix...THIS IS BULL****.. Renault clearwater dealership you guys r bull****... Oh I called Renault SA and I am not happy with their services...they are as useless....