QUOTE(sj0217 @ Jul 28 2016, 12:22 PM)
Just wondering which account number we need to pay for on next month

I have just received my new TNB bill come with 12 digits, probably try for 12 digits through UOBPAYONLINE next month, otherwise, 14 digits then
unless uobpayonline explicitly mention to use the new 12-digit account number, i'd say still pay according to the old 14-digit account number.
p/s: Maybank already informed customers to begin using 12-digit for bill payments in M2U. grace period until 19 Oct 2016.
although tnb itself is currently accepting both 14-digit and 12-digit account numbers, for the time being, uobpayonline system need to be updated too.
one way or another, sooner or later, all connected systems (e.g. payment gateways such as uobpayonline or even ePay) will need to be updated.