Bruhat Bengaluru Mahanagara Palike [BBMP] — Garbage collector demanding money

Address:

10th cross

I live in nagvarapalya and every time she goes to dispose garbage, they demand. So my mother paid 20 rupees. Again the following week they demand her for money. Today I went the driver asked for money. I told my mother paid already, he said no she did not pay. I do not understand the demanding tone. Are we liable to pay everytime we dispose waste? We are happy to pay during festivals etc. But the demanding tone and inappropriate behaviour is unacceptable. Can some authority please look into this and take appropriate action? Thanks