Classic bait and switch scam.
Classic bait and switch. Promised a fare of $338.00 Toronto to Iceland. Advertised "only 9 seats left at this price". I booked it, I thought - they never charged my credit card. Called me back to say the fare was unavailable, unless I paid $580.00 extra. I refused. They said they would still be charging me $338.00. I refused and told them I would report this as fraud. They claimed I would be banned for life from Icelandair. I laughed, hung up and locked my credit card. They sent an apology email and said they would not be charging me for the transaction. I booked direct with Icelandair. Total scam.