Having issue with Currency by country feature

hey,
hope you’re doing well.
we’re having issue with currency by country feature. it’s not showing correct currency depending upon the country.
Please check this issue out. I’ve provided the login credentials.
UK people are seeing price in USD.
US people seeing price in Euro
Portugal People seeing price in USD.

Checked the plugin conflict and theme conflict as well.

Looking forward to hearing from you ASAP.
Thanks