Even though it is not an official service, in Germany there is Abgeordnetenwach [0](Translate: representative watch), where citizen can ask parlamentarians directly. Some parlamentarians are great at answering questions, while some never reply and some only let their offices copy & paste standard replies. I wish politicians would be forced to make an effort to reply to their sovereign. Certain reasonable anti-spam and DoD measures granted.

[0] https://www.abgeordnetenwatch.de/