how to increase the company's revenues?

There are several ways to solve your problem. For example, you can open a representative office of your company in Dubai. This will give you a ton of benefits. Just keep in mind that when you start a business in Dubai, you need to obtain a DED professional license in the UAE  in order to conduct your business legally.

For this purpose you can effectively create a special website or an application.

If you are going to increase profit and are going to develop your company much more effective, I can advise to use https://fireart.studio which is a professional web development firm, helping with all the questions if you want to make your business work much more effective and also to implemet your business ideas to life. Such a company uses only the modern technologies and help with development of all the modern solutions and applications.