We received a 'tax refund' this year. [=this year we paid too much income tax so we got some money back]
They refused to 'refund' the ticket. [=to give back the money that I had paid for the ticket]
If you are not completely satisfied, we will 'refund' the purchase price.
(..) A small farewell present. When will you be going to Egypt? At Easter. But I've actually given up on the idea. Oh? Did you get a refund? I haven't really checked yet. Shouldn't we just go? Together? I thought you didn't like the idea. (..)2015 Virgin Mountain