Redmi 8A Problem: "your Device Is Associated With An Existing Mi Account

[Herrixey C]

Hi. I bought a Xiaomi Redmi 8A couple of weeks ago from china through airplane but it came with an expired MIUI system. I downloaded and installed the latest MIUI system but the phone has locked now saying that the phone is already associated with another account so that I have to put Xiaomi Redmi account password to activate the phone. But it has a Chinese number and in from Malawi.It does not let me sign in with my account...