Editing an app from v3cube.

We have an app that was built by v3cube.. the code is written in php however it’s not the best code.. However we really needs to edit it in order to manage to develop our business.. we need the following modifications - in the app there’s a wallet but you can only top up this wallet by card or the dashboard we want people to be able to top up this wallet by vouchers/cards that will be sold on stores as any other vouchers - in the dashboard there’s a wallet report however this report is no effective because you need to put a user or provider name to see results however we need to be able to see all wallet movement day-by-day without the need to insert specific provider or user name - The current system is taking the amount of any order from the driver wallet which is not helpful for us story example: An order is made to a restaurant with a total of 50 LD and the right for delivering this order is 7 LD we want just the commission of the right/delivery to be taken from the drivers wallet as a normal taxi ride because the driver will be paying the shop or restaurant in cash and getting his cash back from the customer once delivered so the order value has nothing to do with our wallet system. - - in the items page when the customer press the item image nothing happen however we this to be edited in way the when you press in product image it will take you to a page where there is a big image and great explaining of the product datiles. - changing the main screen UI to add big sliders at the top which will help us to make announcements - right now the system is designed in a way that we have to set the same delivery price for all the stores we need to be able to set a delivery price for each store alone one store may have the price of 10 and other for free.