I noticed today that a new menu was added to my LoadXtreme virtual office
Cell number ACL (BETA TEST)
Define Access List for Cell number (BETA TEST)
Previously, any number or SIM can transact using a single account as long as they know the ID number and PIK of the retailer or dealer. With this feature, retailers and dealers can now specify the mobile phone numbers that can transact. To activate this feature, log-in to your virtual office and input the allowed mobile numbers.
If there are no entries then anybody can use it. I suggest activating the features and placing the mobile number/s to keep your accounts secure.