Oftentimes, hospitals will give people an estimate of how much their stay will cost and then the final bill is much higher which often leads to people being angry
Context: I had to go to the hospital last month and I was charged 400 dollars more than they said it would be.
Hypothesis: I was really mad when I found out that the hospital charged me 400 dollars more than their initial estimate

Given this context, is the hypothesis true (Yes/No/I don't know)?