No, I haven’t heard of this problem although if you don’t have any other details but the block and apartment numbers, surely it must be very hard for a guest to locate it with such minimal details? Reading you message, I would have thought your address would be something along these lines -
Appartment number XXX
Block number XXX
New Marina
El Gouna
Egypt
This looks like an address to me but of course you know better if in actuality it can be written as such
If the above doesn’t work then have a look at the contact options via this link - Contact Airbnb
All the best,
Ama