I received a warrant, but I did not receive the original assessment.
Perhaps you received your assessment via your personal message box ('Berichtenbox') at MijnOverheid (You are leaving this website). Did you sign up to receive messages from Waternet? Then you will receive your assessment via MijnOverheid.
Check your contact preference to see how you receive your assessment: digitally via MijnOverheid or through the post.
Did you forget to pay? Then you will receive a payment reminder via MijnOverheid. Did you still forget to pay? Then you will also receive a digital payment reminder in your personal message box ('Berichtenbox').
A warrant is a paper copy that is sent through the post.
Would you rather receive your bill by email? Log in at My Waternet with your DigiD, change your contact preference to 'email', and never miss an important bill again.