Which software is your phone currently on may I ask ?
You could try Samsung Smartswitch to update.
Until then as updates are sent out in waves to eligible phone's dependent on region , phone build and serial number it's a case of waiting.
Phone's that have been imported into the UK / grey imports being sold by resellers or phone's supplied by a network may have their own update schedule.
This is a similar thread > https://eu.community.samsung.com/t5/galaxy-a-series/a52s-5g-one-ui-5-1
If I can be of any further help then please don't hesitate. Take care. 😎
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "