Brihanmumbai Electricity Supply & Transport Undertaking [Best] — Zero balance pass

I had visited last month at magathane depot for renewal of my zero balance pass, but the staff present there told me to bring my online disability certificate. My online disability certificate is under process, today i had travelled from Dahisar to Borivali in best bus number 7500 "route 462", the bus conductor took ticket charges from me saying that this old zero balance pass should be surrendered at magathane depot. He also told me that this pass is cancelled 2 months back, till yesterday i was traveling with my old zero balance pass and tickets were also getting printed. Today also, i had travelled till kandivali after getting down at borivali from bus number 7500. The tickets were getting printed.
What is the reason for troubling public for this little issue ?
I am mumbai citizen not outsider, if my online disability certificate is under process that's not my fault.
Send me your email id, i will send you pic of my paid ticket.