Do I have to complain immediately?

Our advice is that you complain to the operator as soon as you notice the error. This gives the operator the opportunity to rectify the problem as soon as possible. According to the operator’s terms and conditions, the timing of the complaint can also affect the calculation of a price reduction.

To be entitled to, for example, rectification, price reduction, compensation or termination, you must complain (make a claim) within a reasonable time from when you noticed or should have noticed that the service is faulty. If you complain within two months after discovering the error, you have complained in time.

In the event of a delivery delay, you must complain within a reasonable time from the agreed delivery date.