Petrol tank leakage of pulsar protectedf

Sir, I had purchase protectedf pulsar in june protected at siliguri atoworks Bajaj, Gangtok east sikkim, protected. Owner name:Yogesh Dahal Contact No: protected Bike No. SkprotectedPBprotected Chassis no. MD2AprotectedEY1JCBprotected Engine no. DKYCJBprotected Complaint: within five months petrol tank was leakage, i went to service centre at gangtok, he replied that some rubber needed to atop leakage but that rubber we don't have right no, it will take 2 weeks time. What should I do? I am riding petrol leakage bike, if something happen who will responsible, My request is that kindly replace fuel tank immediately. As per direction from gangtok service centre go to siliguri, I went to siliguri but problem is same. I spend lots of money for same problem.