Answered question
no date after mobile was activated
You need to be sure that your phone is compatible.
https://fizz.ca/en/faq/compatible-devices
And that you have the right APN configuration
Other answers
No date or no data?
Please provide more details. What phone do you have?
Is any of your phone service working? Calling? Texting?
Yes, please give us more details of what you mean by no date.
Need more details to understand the situation. And I assume you are saying data?