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.
Yes, provided that the mobile service suffers an interruption of at least 8 consecutive hours at the known billing address.
When a mobile antenna is down, that does not automatically mean that there was no coverage during at least 8 hours. For a big part of the territory is covered by more than one antenna.
In case of a prepaid card, the end-user has to request the compensation himself.
There is no right to a legal compensation in case of force majeure or when the end-user himself is to blame for the interruption.