Just got off the phone with the nursing department. She told me that there was a glitch where a small number people who already got in for Fall 2021 received another offer for Spring 2022. However, that was the only glitch. If you received an offer for Spring 2022 and aren't already a student for Fall '21 then it was legit. Make sure you email them to accept or reject your spot ASAP. For the next week they will be going through and doing a hand audit to make sure everyone's points are valid, and then they will send out an official offer signed by the director.