After you file

@elineau-margot You will need to contact the Canada Revenue Agency (CRA) to check if they have received your return and what the status is. 

If you are in Canada or the United States, you can call the CRA at 1-800-959-8281. If you are elsewhere, you can call 613-940-8495. This page has more ways to contact the CRA: Contact the Canada Revenue Agency