Booked & Paid for Private Room, Gave me Shared Bunk Room

I will never go back to Agoda after the terrible customer experience I received after their error.
I booked a private room in a hostel because I caught a cold and they put me in a shared room. When I called they said it isn't their fault the error was on the provider they used and there was nothing they could do about it because it is non-refundable, but they will open a ticket and will get back to me. I had to go and book another hotel on my own as they did not offer any resolution. Customer experience is awful, I had to call back multiple times the next day and the only thing is they can provide Agoda Cash which is useless when you pre-book all your hotels.
After looking and checking on the internet I found out they had a guarantee they could book me in a comparable room which they did not offer. I will never use Agoda again, the only job they have to do is book the right room and they could not do that. The call centre is rude and lack customer service. In the future I will be booking directly with the hotels/hostels, when you get sick on your trip and they can't even get you the right bed the discount is not worth it. In the future I will only use Expedia.