Tablet I want to update my C6802 to C6833 14.4.A.0.108 by official method (PCC or SUS)

I want to update my C6802 to C6833 14.4.A.0.108 by official method (PCC or SUS) so I have updated my C6802 with C6833 ROM Europe LTE version 14.2.A.1.136.
PCC is showing the model name as C6833 but it states the your phone is updated/When I have tried to repair with PCC it states.
Sony Update Engine does not have the software available for the device.

Please advise as I want to update my C6802 to C6833 14.4.A.0.108 by official method (PCC or SUS)