Get 24/7 Technical Support by calling:

From a OneSimCard enabled phone:

The first 3 minutes are free when calling Support from your OneSimCard enabled phone.
After 3 minutes, you will be charged the standard outgoing call rate from the country you are in.

Will only work from a OneSimCard enabled phone:

We will review your question and respond via SMS.
You will be charged the standard outgoing SMS rate for each text you send.
You will not be charged for any text responses you receive back from us.
Texts should be sent in English characters only and be no longer than 160 characters in length.
You do not need to include your OneSimCard phone number.

1-617-812-0370

OneSimCard
PO Box 481
Belmont, MA 02478-0004
USA