EY refund the full price last year(MOW-AUH-BKK-AUH-SYD in J), the amount was in RUB but cc charges in USD. At first they refund less due to the RUB/USD exchange rate changes.After providing cc statement the refunded full amount in USD.The difference of exchange rate was around 80USD more in the day of purchase. I paid with US cc,so in USD.