They also replied this but there is no update till date
Hello,
Thank you for your correspondence to the Ontario Immigrant Nominee Program (OINP).
Please note that when the OINP e-Filing Portal is experiencing a large number of users, the system can take some time to update the status of the application from “Waiting for Submission” to “Submitted”.
If your payment has been successfully deducted, please allow some business days for us to update the status of your application to reflect that it has been submitted. Please note our officers will diligently monitor the payment and restore the status of your application if required.
Please note that this will not have an impact on your application deadline.