Who thinks Carnival cruise lines is the worst cruise line?

I just came back from a carnival cruise that was supposed to go to the grand cayman islands and ocho rios, but due to a passenger becoming critically ill on the boat they had to turn around and drop the passenger off at key west, thus forfieting grand caymen. Which is fine they did what they had to do. They only reimbursed the passengers 25 dollars for not going to the grand caymen islands. I called carnival when I got back home to request a 50% refund and they offered me another 25 dollars and they were very rude to me. So I said that I was going to be contacting a lawyer, and the supervisor at guest relations said, that I better not call back because from here on out no carnival employees are to have any communications with me and then he resended the extra 25. Are there any other people who have had bad expericences with carnival and how was it handled?
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let me clarify something, when you pay 700 dollars for a cruise 25 dollars in nothing. I am not saying they should not have turned around, they should have. But they should also be giving vouchers to the rest of the people on the boat. Carnival will more then make their money back. I spent like 500.00 on my sail and sign card plus 200 in the casino. So if they gave 2000 people vouchers for at least 50% off they would actually come out on top. So of you dont understand this is about meeting the expectations of your guests. Yeah that was an unforeen circumstance and I hope that person gets well, but there is no reason I should take a loss, especially from a multimillion dollar company like carnival