iOS and Android development

Exactly a year ago, I retired from a company that programmed a taxi app similar to Uber. It has been a year and even now there are problems with the order and it has not been fully completed. The app needs to adjust your booking, payment and wallet settings. I am looking for a company to complete the order within just one week. Company only. Because I have been involved in paying rent fees for two offices in two countries and two employees for five months, and until now I have not started working.