Best Wallet Forced Gmail Login and Blocked Access to My Existing Account

I had previously registered for the Best Wallet app using my phone number, and I had been logging in this way for a long time. In order to use the app on another phone, I deleted it from my existing device. However, after reinstalling the app, I noticed that the phone number login option had been removed and that only Gmail login is now required. As a result, I have been unable to access my old account for the past two days.
This situation has caused me serious hardship because my old account contains a balance/assets. I also cannot find any support line or customer service channel within the app or on your website where I can directly report this issue. I am using an Android device, and my account was created entirely using my phone number.
In order to regain access to my old account, I request that my phone-number-based account be linked to my Gmail address and that my account be reactivated. I ask that the balance in my account and all my rights be fully protected, and that I receive a response as soon as possible.