In UseMyNet v1.9 customers the default messages customers see are:

"Duration of Internet Access(Min) "
"Your session will start in 10 seconds please wait...."

"Your free access period has finished. Please use paid service or wait till unblock."

"Incorrect Code"
"Code already used"

If you wish to change these messages (or translate them into another language) then you can do so

by editing the files:

/www_1/cgi-bin/savedata.sh

and
/www_1/cgi-bin/selfgen.sh

and looking through them for the messages to change.

If you are confident using vi then the files can be edited by connecting to the unit with ssh.

Otherwise you can use winscp or similar to copy the files onto a PC and edit them there, then transfer them back.

Please note. You must enable ssh first by enabling the XWRT console in the UseMyNet settings and then going to http://10.0.0.1 and setting up a password.