Girls, hello everyone, I was given a referral for a cyclooscopy, so I'…

Girls, hello everyone, I was given a referral for a cyclooscopy, so I'm calling to register there. They tell me that we don't cooperate with clinics and it's paid, and I thought, "I don't need this," they say the procedure is not pleasant, can you tell me if you were allowed to go to the hospital without this cyclooscopy?