There are a lot of people and services that claim to have EDL account and will help you for some fee but most of them are scam. To flash a phone with a locked bootloader requires EDL authorization, and as you know Xiaomi does not allow. The phone is Chinese, as most with such a problem.
I share the experience after a week of searching for the MI 9SE issue, but in the supported devices lists there are a lot of Xiaomi devices. First, I want to say that I have nothing to do with the program or the developer and this is not an advertisement.
