Start with the features stated in the original booking. Compare the type of accommodation, category, room or unit, location, distance, meals, accessibility, facilities, travel dates and included services. Photographs from a website can support the record, but they do not replace the contractual documents.
The travel itinerary can affect the importance of the accommodation. On a multi-stop package, a different location may change transfers or the use of other booked services. For a family trip, room layout and accessibility may matter. On a holiday focused on rest, an expressly promised beach location, spa facility or board arrangement may shape the value of the booking.
Do not accept the replacement silently while its consequences are still unclear. Ask for the address, category, meals, additional costs, transfer and treatment of payments already made. If you accept, state whether the acceptance also settles a price reduction or other claims. The answer should be clear for both sides.