The voucher can only used for SIM cards that are purchased from m-cramer Satellitenservices.
BGAN Prepaid Voucher with 0 units / 30 days.
Mandatory fort this voucher is an existing validity period of balance.
Within a valid period, 30 days will be added to the expiry date of your actual balance. The balance remains unchanged.
Cumlative upload of several 30 days voucher is possible.
