[Resolved]  Ola Money — ola postpaid concern

I have been receiving sms from ola postpaid about pending postpaid payment of rs 13/- due from my side. But, i don't have any pending due with ola postpaid. Paying rs 13/- is not a big deal for me but my concern is about charging due from customer from nowhere. I want to know reason of this charge. I have been receiving this sms repeatedly. This is quite disturbing for a customer to receive such message with no real reason. Also, there is no way to speak to customer care; no such option is there in mobile or desktop app; even customer service number is always busy. It's real pain to deal with ola now-a-days.