Build me an App

Hello, am Hillary Kalunga from Zambia. I want an Auction App, this app should only allow the admin to post the items to be auctioned, and for the bidders can only qualify to bid if someone deposit a certain amount into his/her account. The app should be giving a sound notification whenever someone placed a bid and the admin post a new item. The App should allow bidders to pay through the app or make personal arrangements. The app should automatically deducts a certain amount in his/her when a bidder fails to pay for the item within 24hrs. It should be a user friendly app.
Happy bidding
Hillary