Here are the list of keywords (access number: 2860):

Primary Keyword	Secondary Keyword		Description	Example
ON	PENELCO	<account ID>	To receive monthly billing alerts	ON PENELCO 0202123456
OFF	PENELCO	<account ID>	To cancel receiving bi-monthly billing alerts.	OFF PENELCO 0202123456
ON	PENECLO NEWS		To receive regular service updates	ON PENELCO NEWS
OFF	PENELCO NEWS		To cancel receiving regular service updates	OFF PENELCO NEWS
PENELCO	SVCCTRLIST		To get a list of service centers. Subscriber can get contact info	PENELCO SVCCTRLIST
PENELCO	INFO	<service center>	To get contact info of a particular service center	PENELCO INFO BALANGAN
PENELCO	HELP		To get information on how to use the service.	PENELCO HELP
PENELCO	HELPMORE		To get more information on how to use the service.	PENELCO HELPMORE