I am writing to express my extreme dissatisfaction with a recent booking experience. I purchased a ticket for [destination] (not the cheapest option), but unfortunately, I may have made a mistake when entering the email address on my account. When I contacted customer service to request a change, I was informed it would take an unacceptable 21 days to update. While one advisor offered a discounted membership and voucher (which seemed useless given the circumstances), another advisor inexplicably signed me up for a £69.99 Prime membership without my consent. I have already disputed this unauthorized charge and sent a complaint email, but your response was simply an excuse, citing non-refundable terms. Finding myself enrolled in a service I never requested, and with limited options to fix my booking issue, is deeply frustrating. This experience has completely eroded my trust in your company. I will not hesitate to use alternative travel providers in the future, even if it means paying slightly more.