Hi, my father Fugen Guo bought a return ticket （T7TH8E). It was purchased with my credit card. He only used one way. We requested for refund as announced by Air Canada. My father got a voucher ( 144401****89196) instead of refund. We requested refund in the same day and we got refund. Why was my father treated differently? Can we get refund instead of voucher? Thanks and Regards, Nancy Langford, Fugen Guos daughter.