False advertising

I purchased 2 discounted return tickets through edreams on the website. After payment I received a confirmation email and a ref no. A few days later I received another email stating my tickets were canceled due to incorrect pricing. Edreams states clearly on the website price Garentee. It's ******* and immoral just to cancel my flights , that's also false advertising no matter the reasoning. I have planned my entire trip and paid for non refundable accommodation around these flights. I would like edreams to reinstated my tickets as it is my consumer rights to purchase tickets that was offered to me by edreams on their site. I have made screen shots of the advertised price , my confirmation of payment and flight booking. My ref booking no is ***. I hope edreams can stick to their rights of equality in the consumer market and against discriminatory marketing. L Chapple