From your cell phone follow steps
Step 1. TEXT 10101 14862 to 88147 (Note: SPACE between 10101 and 14862)
System will respond back with to you with requested information in real time.
At this point, you can try other available property ID's listed under Profile Property.
Step 2. 10101 cancel
System will respond back with a cancellation confirmation message.
Step 3. stop
System will optout your cell phone completely.