We recently purchased a 5 pack of 3G/LTE SIM cards. We bought 10MB per month. After using 2 of the devices this weekend I get this email - "One or more of your units has exceeded your threshold limit(s). No action has been taken, but you may need to investigate the units listed in the attached report." When I look at the attachment sent in the email, it shows we used about 990 KB per device. Unless I'm totally wrong, that is way off from our monthly 10MB that we bought. Why would I get this email? Or am I calculating totally wrong and we are already getting close to our 10MB?