The Traditional Business Model did not require much of brain storming as it was just one-time billing and it was done with simplicity without causing any hassle for the consumer or the billing authority. The entrance of recurring business model has increased mental work for the billing department as apart from a fix services customer has the power to anytime subscribe or unsubscribe from any of the add on services. Thus, if your billing model does not support these features the company may not be able to track the amount [...]
