Just found this solution, I thought that I should also share it here.
Not sure if this works with the accounts who were playing during Beta, It would nice if someone can try and let me know here. Because I didn’t have access to Beta I couldn’t test it.
Go to https://account.riotgames.com/account and check your current Country/Region, if this is not the one you want then
Go to https://support-valorant.riotgames.com/hc/en-us then click on "Submit a ticket"
Choose your request type as "I’m having issues with Riot account Region/ Shard Assignment.
Then choose your inquiry as "My account was assigned to the wrong region or shard!"
Next, you can see a big box that says “UPDATING YOUR REGION OF RESIDENCE” and there is a checkbox there, If you click on it, it will show your current region and your current location. for example, my current region was “USA” but my current location is " Philippines", then it just offered me that do you want us to change your region? That’s it, I clicked on Submit to change my region and within 2 minutes my region from the USA changed to the Philippines, without even submitting my ticket.
I hope this was helpful for you guys, again this might only work with new accounts that didn’t play during BETA or this is a new feature that Valorant just added to their support.