diff --git a/FE/Currency.php b/FE/Currency.php
new file mode 100644
index 0000000..1203e92
--- /dev/null
+++ b/FE/Currency.php
@@ -0,0 +1,92 @@
+<?php
+namespace Dfe\Stripe\FE;
+use Dfe\Stripe\Settings as S;
+/**
+ * 2017-10-15
+ * «Brazilian Stripe accounts (currently in Preview) can only charge in Brazilian Real»:
+ * https://github.com/mage2pro/stripe/issues/31
+ * «Mexican Stripe accounts (currently in Preview) can only charge in Mexican Peso»
+ * https://github.com/mage2pro/stripe/issues/32
+ * @final Unable to use the PHP «final» keyword here because of the M2 code generation.
+ */
+class Currency extends \Df\Directory\FE\Currency {
+	/**
+	 * 2017-10-15
+	 * @final Unable to use the PHP «final» keyword here because of the M2 code generation.
+	 * @override
+	 * Перекрываем магический метод,
+	 * потому что к магическим методам не применяются плагины, а нам надо применить плагин
+	 * @see \Df\Framework\Plugin\Data\Form\Element\AbstractElement::afterGetComment()
+	 * @used-by \Magento\Config\Block\System\Config\Form\Field::_renderValue()
+	 * https://github.com/magento/magento2/blob/2.2.0-RC1.8/app/code/Magento/Config/Block/System/Config/Form/Field.php#L79-L81
+	 *	if ((string)$element->getComment()) {
+	 *		$html .= '<p class="note"><span>' . $element->getComment() . '</span></p>';
+	 *	}
+	 * @return string|null
+	 */
+	function getComment() {return !$this->hasKey() || $this->s()->isMerchantInUS() ?
+		"<ul class='df-note'><li>The <b>JCB</b>, <b>Discover</b>, and <b>Diners Club</b> bank cards are <b>always charged in USD</b> (<a href='https://github.com/mage2pro/stripe/issues/28' target='_blank' title='«JCB, Discover, and Diners Club cards can only be charged in USD»'>Stripe does not support other currencies for them</a>).</li>
+		</ul>"
+		: (!$this->disabled() ? null :
+			__("The <b>%1</b> Stripe accounts can only charge in <b>%2</b>.",
+				dftr($this->country(), ['BR' => __('Brazilian'), 'MX' => __('Mexican')])
+				,df_currency_name($this->currency()
+			))
+		)
+	;}
+
+	/**
+	 * 2017-10-15
+	 * @override
+	 * @see \Df\Directory\FE\Currency::getValue()
+	 * @used-by \Df\Framework\Form\Element\Select2::setRenderer()
+	 * @return string|null
+	 */
+	function getValue() {return $this->disabled() ? $this->currency() : parent::getValue();}
+
+	/**
+	 * 2017-10-15
+	 * @override
+	 * @see \Df\Framework\Form\Element\Select2::enabled()
+	 * @used-by getValue()
+	 * @used-by \Df\Framework\Form\Element\Select2::setRenderer()
+	 * @return bool
+	 */
+	final protected function disabled() {return in_array($this->country(), ['BR', 'MX']);}
+
+	/**
+	 * 2017-10-15
+	 * @used-by currency()
+	 * @used-by disabled()
+	 * @used-by getComment()
+	 * @return string
+	 */
+	private function country() {return dfc($this, function() {return !$this->hasKey() ? null :
+		$this->s()->merchantCountry()
+	;});}
+
+	/**
+	 * 2017-10-15
+	 * @used-by getComment()
+	 * @used-by getValue()
+	 * @return string
+	 */
+	private function currency() {return df_currency_by_country_c($this->country());}
+
+	/**
+	 * 2017-10-15
+	 * @used-by country()
+	 * @used-by getComment()
+	 * @return bool
+	 */
+	private function hasKey() {return dfc($this, function() {return $this->s()->privateKey(null, false);});}
+
+	/**
+	 * 2017-10-15
+	 * @used-by country()
+	 * @used-by getComment()
+	 * @used-by hasKey()
+	 * @return S $s
+	 */
+	private function s() {return dfc($this, function() {return dfps($this);});}
+}
\ No newline at end of file
diff --git a/Method.php b/Method.php
index ee4a64f..8124c06 100644
--- a/Method.php
+++ b/Method.php
@@ -24,8 +24,7 @@ function canCapturePartial() {return true;}
 	 * @used-by \Dfe\Stripe\Currency::_iso3()
 	 * @return string|null
 	 */
-	function cardType() {return dfc($this, function() {
-		/** @var string $r */
+	function cardType() {return dfc($this, function() {/** @var string $r */
 		if (!($r = $this->iia(self::$II_CARD_TYPE))) {
 			/**
 			 * 2017-10-12
diff --git a/Settings.php b/Settings.php
index bb63d85..989e197 100644
--- a/Settings.php
+++ b/Settings.php
@@ -18,7 +18,15 @@ function init() {\Stripe\Stripe::setApiKey($this->privateKey());}
 	 * @used-by \Dfe\Stripe\Method::minimumAmount()
 	 * @return bool
 	 */
-	function isMerchantInUS() {return 'US' === $this->account()->{'country'};}
+	function isMerchantInUS() {return 'US' === $this->merchantCountry();}
+
+	/**               
+	 * 2017-10-15  
+	 * @used-by isMerchantInUS()
+	 * @used-by \Dfe\Stripe\FE\Currency::country()
+	 * @return string
+	 */
+	function merchantCountry() {return $this->account()->{'country'};}
 
 	/**
 	 * 2016-03-08 https://stripe.com/docs/api/php#retrieve_account
diff --git a/composer.json b/composer.json
index 0369a39..4aaf3ea 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "mage2pro/stripe"
-	,"version": "2.0.0"
+	,"version": "2.1.0"
 	,"description": "The «Stripe» payment extension for Magento 2."
 	,"type": "magento2-module"
 	,"homepage": "https://mage2.pro/c/extensions/stripe"
@@ -11,7 +11,7 @@
 		"homepage": "https://mage2.pro/users/dmitry_fedyuk",
 		"role": "Developer"
 	}]
-	,"require": {"mage2pro/core": ">=3.2.0", "stripe/stripe-php": "3.*"}
+	,"require": {"mage2pro/core": ">=3.2.2", "stripe/stripe-php": "3.*"}
 	,"autoload": {"files": ["registration.php"], "psr-4": {"Dfe\\Stripe\\": ""}}
 	,"keywords": [
 		"API"
diff --git a/etc/adminhtml/system.xml b/etc/adminhtml/system.xml
index c4021aa..20772a0 100644
--- a/etc/adminhtml/system.xml
+++ b/etc/adminhtml/system.xml
@@ -145,10 +145,8 @@
 					showInDefault='1' showInStore='1' showInWebsite='1'
 					sortOrder='10'
 					translate='label'
-					type='Df\Directory\FormElement\Currency'
+					type='Dfe\Stripe\FE\Currency'
 				>
-					<comment><![CDATA[<ul class='df-note'><li>The <b>JCB</b>, <b>Discover</b>, and <b>Diners Club</b> bank cards are <b>always charged in USD</b> (<a href='https://github.com/mage2pro/stripe/issues/28' target='_blank' title='«JCB, Discover, and Diners Club cards can only be charged in USD»'>Stripe does not support other currencies for them</a>).</li>
-</ul>]]></comment>
 					<label>Payment Currency</label>
 					<depends><field id='enable'>1</field></depends>
 				</field>