Existing app update - App project

Mobile app project description

Hello we have an app that was developed a couple of years ago.

We can provide access to the programme.

We have received the following message from Apple saying we need to update it:

"On September 1, 2016, we announced that we’re implementing an ongoing process of evaluating and
removing apps from the App Store that no longer function as intended, don’t follow current review
guidelines, or are outdated.

You were asked to submit an updated version of your app for review within 30
days. We noticed that either you did not submit an updated version of your app for review or the updated
version of your app was not approved. As a result, your app has been removed from the App Store.

Next Steps

To restore your app to the App Store, submit an updated version for review and make sure it follows the
latest App Review Guidelines. Until you have submitted an update and it is approved, your app will not
be available on the App Store. You can continue to use your current app name, as your app has not
been deleted from your account. If you submitted an update after the 30 day grace period, please allow
time for review. Your app will be restored to the App Store if the update is approved."

Is is possible you can look at our App and see cost/time/availability to update our App?

Thank you