MRF Tyres — My new MRF tyre is defective

Address:

72, Outer Ring Rd, next to HTR Modz, Vysya Bank Colony, BTM 2nd Stage, BTM Layout, Bengaluru, Karnataka 560076

I got front tyre of my duke 200 replaced at Danish MRF BTM layout, Bangalore. And the tyre pressure was reducing slowly on taking it back to them they said it is due to the rim and cleaned it and also charged me for cleaning. But the issue was still there and on taking it back to them again they asked me to get the pressure checked at the fuel station while filling fuel but that is not acceptable and I have replaced my types 4 times before and this is the one with this issue. Please help me in getting it replaced.