For many years, calls to the customer service number of a company could be quite expensive as they often used an 0900 number and charged extra costs in addition to the normal calling costs. The Dutch government limited this already to a maximum of 1 euro per call, but as of 1 July 2017 no extra charges are allowed. According to the government, a call to customer service should be just the same as any regular call.
No extra costs for calls to 0900 customer service numbers allowed
The costs for these calls should be included in the product or service the company offers. When you make the call, you should get a message that for calling this number you pay your regular calling costs.
If a company can only be called at one number which is used for several purposes, including customer service, the rules mentioned above apply too.
0900 numbers can only be reached from within the Netherlands. Companies who often are in touch with people from abroad usually have a regular number for these (prospective) clients.
More information is available on https://www.consuwijzer.nl/telecom-post/telefoonnummers/informatienummers/klantenservice-via-0900-0906-en-0909-nummers (Dutch only).
In case a company doesn’t stick to these rules, you can inform them about it. In addition, you can complain to your telephone provider and ask for the money you paid to be refunded. It is recommended to inform the Dutch government as well. You can do so by filling in the form on https://www.consuwijzer.nl/thema/tariefmelding-informatienummers-vast-en-mobiel (Dutch only) or call Consuwijzer at 088 - 070 70 70.