Call and internet take a business subscription
For example, choose a business subscription for internet + calling from KPN. This means that you must be able to demonstrate that its use is largely business-like. If your subscription is private, you must always remove the business part from it and add it as costs. Since the majority of the use is business, I can therefore turn it around better: increase business and remove only the small amount of private use. The burden of proof for business use lies with the entrepreneur.