Need changes in Quickad Classified (Angular JS/PHP)

These changes i need in Quickad Classified script (Codecanyon) Registration OTP user will get OTP when he register account (API) When admin create Category he can assign Package to Category/subcategory Category admin can upload Icon instead of adding URL Admin can Either use Admob or Predefined Banners PayMent Gateway Rezorpay API based (Admin can change Payment Gateway Details) in admin dashboard Registered user should show that admin will add from admin panel Admin can send Push notification (OneSignal) Expired ads will be deleted automatically in 7 Days Q: which language it is A: Its in AngularJS and PHP Budget is arround 5k