BBMP — Garbage collector demands money

I am residing in Koramangala 6th Block from past one year. My neighbours and i are fed up with the garbage collection lady who demands a monthly charge for doing her job. If we refuse to pay she doesn't collect the garbage making the front of our house a garbage collection point.
Since we all are responsible to keep the city clean i request you to please observe her behavior and take some action against her asap.