Kerala Water Authority — online bill payment service not available

Website: epay.kwa.kerala.gov.in

I pay my utility bills mostly via online payment services. I have been doing the same for water bill too. But i have been facing a problem while paying my bill through kwa online payment link, as the error shown is "bill under processing. Details will be available after 3 days from the receipt of spot bill". The receipt of bill is 24/10/18. That is, even after 15 days after the bill date, the online payment facility is not yet activated. P. H. Subdivision is cherthala. Kindly look into the matter and expedite action, as the bill payment date is nearing by.