Need a Android App Dev+ PHP Dev to make Changes in my Android app

I recently purchased an android script for grocery delivery application. Here is he link "[login to view URL]" Please check the details in the seller page. I set up the app on my server already and working fine. There are some little bugs and UI changes and updates are there which needed to change. I am writing the entire requirement here in details so that no one will BID useless amount. Please bid the exact amount. There are total 3 apps and 2 backend Here is the requirement: 1. Mobile no verification using OTP. 2. Single Product Multi type. 3. Setting Up counter of all types 4. Paytm Payment Gateway and QR Code. 5. Razorpay Payment Gateway.(Already included you need to set up only) 6. Payment Gatewar Charge Calculator. 7. Deal Product offer price not showing properly. UI Change(Will explain you later) 8. Referal System with referal code- Refer your friends and earn money. Or both can get money. Admin can control. 9. Delievery Executive Signature Upload problem. 10. SMS on out for delievery. 11. Push Notification not working. More Customised Notification. 12. More advanced search. 13. Delivered Product should not show in the orders. (It should show in the archived orders) 14. Minimum order otherwise delievery charge. 15. Admin can update the order. 16. Ringer in delievery executive app on assigning the order. 17. Notification in Store Manager app on new orders. 18. Customer can cancel or update partial order. 19. Product Page image in square. 20. Selection of Date in orders 21. Change the developer name in every location. 22. Google Map with GPS Addition both customer app and delievery app. 23. Multilanguage (Hindi & Bengali) 24. Secondary banner is showing in every catagory. There should be separate banner for each catagory. 25. If any oder is cancelled from admin side or user side the order getting deleted from the customer side. Is should show as cancelled. It also should not show in Store Manager app. 26. Out For Delievery is not showing in Store Manager app. Order Confirm is not happening in Delievery boy app so that it will show as out for delievery in customer app. 27. Even in cancelled order it is showing as assing order in Store Manger backend. 28. Order Confirm option is not coming in Store Manager App. 29. Confirm Button is not working in delievery application. 30. Delievery Executive Signature Upload problem. I need this updated in 7 days. New freelancers are also welcome. Please provide me the proper budget. If your budget was not proper I will not talk to you. My budget was not very high so please Bid accordingly.