As described in Slingshot’s Terms and Conditions, you must comply with our eligibility requirements to use Slingshot and its products, including Flex.
You may not be eligible to use Flex if:
You live in a country or region where access to our product is restricted.
You are located in certain countries or regions that are subject to economic or trade sanctions, or comprehensive country-wide, territory-wide or regional economic sanctions by the United States or certain governmental bodies. This currently includes the following countries and regions:
Cuba
Iran
North Korea
Syria
Certain parts of Ukraine (specifically, Crimea, Donetsk and Luhansk)