Disclaimer: Please do not consider this a full and all inclusive resource. Please conduct your own further research. I am not responsible for any gain or lost you incur and I am not recommending investment. I have no investments in foreign currency at this time.Large Political and Economical Policies have a heavy influence on Currency, affecting rates, and exchangability. A quick recap…BREXIT was a withdrawal of the U.K. from a trade agreement between the European Union and The United Kingdom. In consequence; The UK currency rate fell as special access to markets and distribution within the European Union was forfeited.Indian Rupees saw the standard 500 rupiah note replaced with a new note having modern security features. The old notes were replaceable for a small amount of time that has now passed. For a small amount of time, INR was not being exchanged.Qatar Riyals were temporarily not exchangeable as members of the Organization of Petroleum Exporting Countries, (OPEC); engaged in policies that would restrain the economy of Qatar. Most notable of these polices include strict land border security and airspace closure.