Soldato
By the look of it at the moment, the Redmi K30 hasn't had a global release as of yet - it'll more than likely be released as a Xiaomi handset in early 2020 for the Western markets that like us use Band 20.
If you're looking to go back to a Xiaomi, I highly recommend the Mi 9T - I reckon you would much prefer it. The K30 is a massive let down in my opinion.
Liam.
I had a look at the Mi 9T but it's the big 6.67" screen of the K30 that interests me. Also the Android 10.