All applicants for a non-immigrant visas must pay the Machine Readable Visa (MRV) fee at the Embassy on the day of the interview. The MRV fee is non-refundable. Please DO NOT send cash through the mail. Payment must be made in cash USD or the Samoan Tala (WST) equivalent. As of August 2019 the exchange rate is USD1.00 = 2.80ST. Visa Fees in U.S. currency.