Agoda's Terrible service

Do not book your hotel through Agoda and its partner, RedDoorz. I had the worst experience with Agoda.
I found this hotel near the seminar venue through Trivago site partnering with Agoda and ReddDoorz. I booked for 3 nights through Agoda, confirmed and paid it. Agoda sent me the confirmation letter of my booking and receipt of my full payment on my email. When I arrived at the Hotel, that's when I learned about the overbooking problem, thus I was not accommodated in the hotel I booked. I was never informed beforehand through email, call or text about that problem. I didn't cancel my booking as suggested by the receptionist of the hotel because I know that Agoda will charge me for that.
Because I was so tired from a long trip and it was late, I accepted to be transferred to another hotel even though it was very far from the seminar venue. It was so stressful and terrible experience. Agoda promised to refund my travel expenses from the first hotel to the second hotel. But then they did it through gift card only and not refund by cash!!!
So do not book your hotels through Trivago and their partners Agoda and RedDoorz. They are very inefficient in monitoring bookings. They would give you false promises. Such a bad experience.