Of course. Mobile banking is ok. You can purchase foreign exchange directly first and then transfer it across the border. When the amount is large, the bank will call you and ask what you are doing. If you are investing in foreign exchange, you need to transfer the money to the platform. Foreign exchange (or Forex) is the creditor's right that the monetary authorities can use when the balance of payments is in deficit, in the form of bank deposits, securities of the Ministry of Finance and long-term and short-term government securities.