Sorry to hear about your experience. For info, Rocket Travel is just an online travel agent (like Expedia or others), who buys FB miles from us (to give to people who book via their platform) - we have no control or visibility over the hotel reservations. This sounds like an issue between the Rocket Travel reservation system and that of the hotel.
But I'm happy to try to escalate if you send me (via PM or email) your booking details.