URGENT Business Listing on Google Maps on iPhone is wrong!

If you are asking about the Google Maps app (as indicated in the title of your post), you will need to contact Google support, not Apple.

If not about Google, see the following from Get help with Maps - Apple Support

If you're a business owner and want to correct the information about one of your locations in Maps, sign in to Maps Connect.

Thanks for the reply. No, we have access to our Google Business listing and there is no issue there. When you look for our business on iPhones it shows as permanently closed. This is not the same on Androids.

Irrelevant. It is a Google issue as they are the owners of the app and database. You will need to contact them as has already been stated in this thread.

If you are asking about Google maps as indicated in the title of your post, see: https://support.google.com/business/answer/3039617