Absolute disappointment and exploitation.

I booked a flight on 22 Dec 2021 for the 17th of Feb 2022 and specifically chose to sit in the front row and of course paid for the seat. Yesterday when I boarded the plane, I was notified the seat "does not exist". I was moved to the middle of the plane without any help. Once I got onto the plane what do I see.... all the seats are there. I asked the flight attendant to please help me, and I was told to proceed to the newly assigned seat. Once I took the seat I was informed the front row seats were booked and "sorry there is nothing I can do". I was livid because I paid for the seat, I booked 2 months ago and no one seemed to care. When I checked in on the 16th of Feb, I chose that seat and did not receive any communication stating that the seat was gone/taken. It is absolutely poor service and a slap in the face. I was looking forward to my trip and Kulula just spoiled the trip to George. I am livid, disappointed and just completely shocked at the service from Kulula. The stress that a person has to endure with these situations make you sick.