Why do I need to send an email to my employees to transfer their mobile number?

Look at it this way: a Mobile Vikings business account is like an umbrella over a number of private accounts. The information in these personal accounts will be transferred to the business account, based on which the invoices will be generated. Setting up the private accounts is done by the employees themselves. This way of working offers an enormous flexibility in managing accounts, both for the employer and the employee. For instance, it allows the employer at any given time to set up, update or stop its contribution for the employee, eliminating the need for an cumbersome procedure.