This site is mainly available in French and Dutch.
Nevertheless, you can find a survey of what the ombudsman can do for you, how the Pension's ombudsman deals with your complaint, what complaints you can take to the ombudsman, ..., as well as a lot of useful addresses.
You can also find the complaint form which will help you very well to take an online commplaint to the Ombudsman.
We wish you a good surf.
Jean Marie Hannesse
Tony Van Der Steen