Will I be fired for calling in sick on a day I got denied off?

Posted by Zestyclose_Arm341@reddit | AskUK | View on Reddit | 54 comments

Post is what the title asks, I asked for holiday off for this thursday (the 20th) and gpt a "Ill have to see who else if off on that day" and have been rotered anyway. I cant work that day due to a big event ive had planned for months to call in sick yet the only problem with this is obvious. It just looks obvious. Could I be fired or slappes on the wrist for this?