Kerala Water Authority — cannot make online payment

Website:

epay.kwa.kerala.gov.in,www.kerala.gov.in/onlinepayments

I have received bill on 15/03/2018. But i cannot remit the amount through netbanking till now as the message shows the bill is processing even after 11 days from the date of receipt of bill.
Iam not able to remit the amount at cash counter due to health issues and kindly make necessary arrangements in the online payment site to remit the due amount at the earliest. Last date is 31/03/2018.
Consumer no. Prd/2939/d
Consumer id.[protected]