Bussan Auto Finance India [BAF] — why online payment portal not working?

Address:

Chennai, Tamil Nadu, 600018

My personal loan emi is every month 11th, almost i completed my loan only two month emi left, this month emi was bounced on 11th, am ready to pay online or cheaque with bouncing charges but they are not accepting, they asking cash only, i said i can pay only by card or online, so please rectify my problem as soon as possible
my contact no; [protected]