I applied first time tax return on 20 feb 2024 but not get nos or refund

Did you get a NETFILE confirmation number?

CRA NETFILE contirmation number: #823QX5LKLB4

You can contact the Canada Revenue Agency (CRA) to see what is happening with your return.

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