APPLE REFUND MONEY EVEN IT'S ALREADY PREPARING TO SHIP.

I ordered iphone 13 pro max on 3rd november. I just checked my order and now it's preparing to ship but why apple refund my money? Today is 20th november and i waited almost a month for my order to arrive but then i got a notice from my bank account that apple was refund my money even it's already preparing to ship. I'm worried if apple cancel my order and i'm worried if i didn't get my phone because I waited for almost a month now. What should i do now? Should i just wait for my order to ship? But how about the money that apple refund to me?