I started an internship in this company about 3 months ago. Everything went fine, and when it ended, they proposed me to extend the internship, this time with another contract.
Now, the terms of the contract remained unclear for a while, since they were not sure about them. They also did something pretty bad in my opinion, which is making me sign the contract before they put the terms on it (Such as duration, hours of work, paycheck...). Now, I probably should have not signed it, but I trust theese people, plus, the laws in my country (Italy, if it matters) say that I can without notice cancel the internship contract (So, if they were to put terms far from those they were thinking about, I could refuse it without any consequence).
The first day of the new internship I asked them a copy of the contract, just to see the terms made official, and everything is how we discussed, except for one thing. Salary. They proposed a certain amout X and I was fine with it, but on the contract the amount is about the double of X. I really don't know how to handle the situation, since I can't find any legal information outside of the company, and asking my boss just seems really wrong. This is my first job experience and talking about money is something I never did and I don't know how to approach it. I am afraid to come off as greedy/rude, but maybe I'm just overhinking.
Any suggestions about how to handle this situation?