Agoda and tripadvisor and expedia 13-12-17

Was booking my trip to kl for comic fiesta. So as usual I went to agoda and look at the prices then compared it again. It seems that trip advisor gives me the prices of the different booking sites. Agoda wasn’t so cheap so I decided to book with expedia. And so I booked I found that on top of the hotel price there was taxes. So i go back to agoda and check as well. In the end agoda also was there. It wasn’t the cheap 80 dollar I hoped. In the end it was close to 100. So on the trip morning I checked on for my booking and it wasn’t there. I also like checked my email and it doesn’t seem there too. Next I checked then I found my booking there. I would have thought that and would be linked together but apparently not?