Glad this got sorted out

Hope you've enjoyed your stay at the Conrad!
I've had that same issue once or twice, particularly when booking via the mobile app. I've usually phoned but I've emailed once too (had to put 'ERROR ON BOOKING FOR TODAY' I think).
I've also had the reverse happen when cancelling the wrong booking on the website. I've opened a booking up, then opened another booking... gone back to the first booking and clicked 'cancel'. Then I see to my horror that the second booking was cancelled despite clicking on the first booking. It seems the webpage tracks what page you last opened not the page you're currently viewing. I had to phone the hotels up to explain an they reinstated the rates (which was kind of them as one of them was an amazing great BRG rate!)