Morphy Richards — europa coffee maker

I bought a coffee maker from bahk enterprises, lajpat nagar new delhi on9.11.2017 twice your mechanic has come but frother does not work there is some steam leakage and the steam button is free it does not lock so ther is no frothing there is leakage of water from the fiter as well i want the product to be replaced immediately it has been a week since i bought it but i am unable to use it your mechanic comes tampers with the machine opens it up and it works once in front of him but in the next use the steam button again becomes free please resolve it asap