App development -- 2

We have built an application called Daily Dash, available on google play store. It is built with Flutter & Google Firestore. We need to make few small changes in it - it is a work of max a week. 1. UI & making connections of user reviews to Firebase. 2. Orders Module - Sending cancelled orders data to Firebase with UI & Initiating refund with Razorpay (Razorpay is already integrated & fully functioning). 3. Building Front-end for Dash Score (UI will be shared during discussion. Dash Score is a rating based on 5 parameters. However UI of Dash Score is a small progress bar library to show score for 5 parameters fetched from Firebase. Backend is ready for that) 4. Integrating Referral System compatible with Flutter. If one user shares the app with another user, Rs. 50 gets credited in both their wallets. (Wallet is already built & fully functioning) 5. Adding 5 more parameter in profile section and sending it to firebase like height, weight, etc. Please refer the app on playstore once to understand the nature of work. Only serious & who can give immediate deliveries do approach. D