Update Your Credit
Please note that OUR Satphone credit vouchers are valid for GMDAS simcards ONLY. Please confirm that you have an existing GMDAS simcard in your satphone prior to PURCHASING A credit voucher.
Are you an existing customer?Yes No
Existing GMDAS Customer?
These are required fields.
Select one of the following options and enter valid SIM/Satphone number:
Please note that SIM number should be a 18 digit number starting with 8987099
Please note that a Satphone number should be a 12 digit number starting with 87077
Contact GMDAS on +61 8 9331 0070 OR fill below form and submit. One of our customer representatives will contact you shortly to discuss satphone plans.