I know alot of people that use online text services, which get sent to me through 21201 and 21203 numbers, I also have written a script for this service, and im curious how come i can be charged for receiving a text.... For example someone could use my site and text someone many times e.g me, and i could be charged loads, and have no way of changing this or stopping myself from being spammed or charged for no reason.
Example of script
www.nathans-world.com/sms.php (note it doesnt always work, only wrote it today)
Is there anyway of not being charged for receiving texts from these numbers.
My main concern is that other people who use other text services who are charging me.
Thank you in Advance