do you have anything support what you say

If you have, for example, you ask the question by email. The manager answer by email or writing. Or when you ask the question, you have some one there who can tell you ask the question and the manager answer no change other than rental.

I guess you do not have anything other than your memary.

It is a general knowledge to read and understand before signing anything.

Are you 18 years or older. If you are not 18+ years old. You do not need to warry anything, the contract/lease is voidable.