Do end-users have to make a request in order to be entitled to a compensation?

No.

Save the case of prepaid cards, end-users do not have to request the compensation. It is the operators who have to take the necessary steps.

For operators to be aware of the interruption, it is in the interest of the end-users to immediately report interruptions to their operators.

This is especially so for mobile services, in which case only those customers who have reported the interruption, will receive a compensation.