"we are happy to inform you that we are very sorry to inform you of our previous information that you were accepted to starupschool, when that was sadly, an error on the part of our rejection system falsely telling you that you were accepted, so I am here to tell you that sadly, you were not accepted by our rejection system and your rejection has summarily been rejected by our acceptance department of rejected rejections and sent to the appropriate signatories for sign-off on your sign-up down-below.
See you next tuesday should this actually be a rejection of your rejection and an ackknowledgement of your acceptance, whichever may come first"