Activating a SIM card with a pay-per-use plan with a subscription fee

The procedure for activating a pay-per-use plan with a subscription fee is as follows:

If the SIM card is already active
Email the following information to support@thingsmobile.com:
• Username (the email address that you used to register)
• The number for which you would like to activate a pay-per-use plan with a subscription fee
If the SIM card is not active yet
Activate the SIM card with a pay-per-use plan without a subscription fee using the procedure described here and then email the following information to support@thingsmobile.com:
• Username (the email address that you used to register)
• The number for which you would like to activate a pay-per-use plan with a subscription fee