Ionic App issues

I have my App Complete with me written using IONIC and it is working fine for the Android Platform but when I want to test the app for the IOS platform I'm unable to get the required results...As it requires me to integrate the section listed below document. I'm unable to Integrate the Section mentioned below in the Excel Document and I'm looking for a developer who can work on my requirement and complete the task as soon as possible because you see I'm short on time as well.

Requirement:-

-- Registration & Login
Google Firebase integration for Mobile No verification via OTP. The captcha should be removed from the flow.
In the app, the user gets two modes of Login, For NEF, login into the web dashboard google authenticator is used, To login into App, a password login need to be integrated.
For any communication purpose, currently, the mail is going through a third-party app Send in Blue, in place of this 3rd party app, need to integrate the mail from our dedicated server.

-- Language
Google language translator API needs to be integrated into the app.

-- In-App Purchase
Merchant id is there with us, need to integrate the In-app purchase module as per Apple policy

-- Uploading the app into iOS App Store
Apple developer a/c is there with us, once the above work is completed need to upload it into the App Store, using our credentials.

I expect the work to be completed in 4 Days or max I can extend it to a week not more than that.