Realise the frustration, were you only informed at the last minute.I imagine it is to do with stock issues but obviously better communication would have made a difference.
Which model have you purchased?
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .