[Xymon] change of one alert notification time

I want to change one of an alert's notification time.

eg. all alerts will have repeat time of 30 mins and disk (or my custom alert) will have repeat time as 4 hours, tried below configuration but not working as expected. What am I doing wrong?

HOST=$HOSTS SERVICE=* IGNORE SERVICE=disk SCRIPT /usr/local/xymon/server/ext/html_mail.pl mail_id at gmail.comFORMAT=PLAIN REPEAT=30 RECOVERED NOTICE SERVICE=disk SCRIPT /usr/local/xymon/server/ext/html_mail.pl mail_id at gmail.comFORMAT=PLAIN REPEAT=240 RECOVERED NOTICE

Thanks, Deepak