Bank Mobile Payment Integration

I'm seeking a skilled developer to introduce a subscription-based payment integration feature on my mobile application using Bank's gateway. Expertise in PHP & React Native is essential as these will form the basis of the development framework. Your responsibility would be:

- Setting up the Bank payment system on the mobile platform,
- Developing a functioning subscription model suitable for the application and its vaired user base.

We have 3 types of membership:

- Package 1 (1 month - 10 euros)
- Package 2 (6 months - 25 euros)
- Package 3 (12 months 49 euros)

10 days before the user's membership will expire, inform him via email.

If the user does not extend the membership, he will not be able to access the application.

It's crucial you have prior experience with Bank's system, have integrated subscription-based payments before, and are proficient in mobile application development.

The user I choose will have to work directly through Teamview or a similar program where I will give him access to perform coding for the sake of data privacy because it is about integration with the bank.

The budget is limited and cannot be increased. After this project I have another one so only serious developers.