Remove the currency conversion Message

When a merchant has store currency as EUR, but the customer choose Delivery country as non-EUR country , a message is shown in Shopify checkout “Note: you will be charged €129,69 EUR.“

Shopify support told this can be overridden if you are the Paymentgateway provider.
We have offsite payment gateway.

Please help how to solve this.

Example

Is this a UI extension that you’ve developed? If so, you can use the Localization API to subscribe to changes in currency.

No , this is a Payments Extension App.

If this is possible, you may need to use a checkout UI extension to achieve this.