Notice received that our accounts have been blocked...???

[Alliwantisaroomsomewhere]

All 3 of us in my home who have FB accounts cannot log on. The following message comes up:

"Your account was sending spam, and for this reason it is temporarily blocked.
To unlock your account, you must confirm that you are a real person and not a robot, and to prove you are the owner of the account.
To do this, go through a simple verification procedure and fill out the form and submit it below. Immediately after that, your account will be unlocked. Please note that the data required for verification is not stored on facebook.com servers and used only once to unlock your account.
Please do not forget to change your password after you unlock your account.
Thank you for your understanding."

This is followed by a form to fill in name, address, bank details including security number. Of course I have NOT entered any information. But what is this, and how do I get rid of it?
Any ideas?

Sounds like a computer virus.

Run your antivirus software first to see if its detected. Avoid entering passwords/internet banking etc until its sorted.

Malwarebytes is good if your own software doesn't find anything.

Thanks, CajaDeLaMemoria. All sorted now.