If you matriculated in the Michaelmas term 2020 or later you should be assigned an overall degree classification upon successful completion of your B.A. degree (Easter 2023 onwards).
Prior to this and unlike other British universities, the University of Cambridge did not award a final degree classification. Instead each part of a Tripos is self-contained and you obtain separate results for each one.
Further information concerning the structure of Undergraduate courses and what you graduate with can be found via the link below.
The structure of undergraduate courses at Cambridge | Cambridge Data
If upon review of the above you believe you should be assigned a classification please submit a request with your details so we may investigate further.