I had more 'issues' with my weekly visit today.
This is probably part of it.
http://www.ekit.com/ekit/MobileInfo/ServiceExpiration
Posted here 4/27/2015
SIM Expiration and Service De-Activation
International, European, Data, and SIMple Calling Services
Free +1 US Number (International SIM only):
1 month from last use.
Initial/bonus credit:
2 months from activation.
Credit:
3 months from last use* or top up.
Service and +44 Global Number:
6 months from last use* or top up.
Promotion:
Expired credit can be reinstated if a customer purchases a minimum $30 credit via Customer Service before service expiry.
Paid numbers (International service only):
Paid US +1 numbers will be ceased upon expiry of credit.
Paid location updates (Travel Journal on International service only):
Paid location look ups will be ceased upon expiry of credit.
* Last use is defined as making a chargeable activity. Chargeable activity is defined as making or receiving a paid call or SMS or using data.
USA 4G LTE SIM Service
Credit & Bundles:
30 days from the date of purchase.
Service and +1 Number:
30 days from last use*
* Last use is defined as making a chargeable activity. Chargeable activity is defined as making a paid call, sending or receiving an SMS, or using data.
International Data SIM
Credit & Bundles:
30 days from the date of purchase.
Service:
30 days from last use