I found a room in "Courtyard Cologne" in Booking.com cheaper than Marriott.com so I submitted a claim in Marriott Best Rate form, I do this a lot and the reservation is always updated with the new rate once I get the email saying "Approved" but today I received this email:
"Your room rate now reflects an additional 25% discount for submitting a successful claim according to the terms of Marriott's Best Rate Guarantee. Please be aware, any modifications made to your reservation are not allowed and will invalidate this approval.
I want to let you know that you may discover that your room rate has not yet been modified on your confirmation record. I want to assure you that this will be corrected before you arrive. We look forward to welcoming you soon!"
It looks like a new policy!, will the reservation be updated automatically? or I should contact them again before arrival?
I'm afraid that the hotel will charge my credit card the full price.