[Resolved] Please help me about why IN Multicurrency payment gateway show not supported?

Yes i already try some custom methods but all failed. when on checkout page after fill form . applications cookies are refresh automatically Again USD to MXN again? when i use this Method !

Method 1:

add_action('woocommerce_before_checkout_form', 'update_wcml_client_currency_cookie');

function update_wcml_client_currency_cookie() {
// Check if the user is on the checkout page
if (is_checkout()) {
// Check if the current currency is MXN and wcml_client_country is 'MX'
if (get_woocommerce_currency() == 'MXN' ) {
// Set the cookie value to 'USD'
setcookie('wcml_client_currency', 'USD', time() + 3600, '/');
}
}
}

This is also not applied correctly?

Method 2:
add_filter( 'wcml_client_currency', 'modify_client_currency', 10, 1 );

function modify_client_currency( $currency ) {
$checkoutpage = wc_get_page_id( 'checkout' );
$current_page_id = get_queried_object_id();

if ( $current_page_id == $checkoutpage && $currency == 'MXN' ) {
return 'USD';
} else {
return $currency;
}
}

Both are not able to solve my issues.

please help and Provide some authentic solution which help to resolve the issue Help to convert MXN to USD when Checkout .