Hello thank you for your message,
I will follow up with my experience, actually the worst part wasn't in Manilla but in Muscat.
We had to wait 3 hours sitting on the floor at the transfer counter once we arrived, then they sent us to the lounge where we wait 8 hours, they have been lying to us again and again we alsmost got arrested as they put us in the immagration area without boarding pass and finally they sent us a tp our hotel at 3am whereas we landed at 3 pm it's now 6 am and we are back at the airport to finally fix it out after less than 2 hours sleep.
It was a complete nightmare, we are so exhausted, we got no support at all from Oman Air.
I will provide more details once we get a nap, cause we are literraly dead.