Agree with @Glos Guy above.
Also, if they’re ignoring your calls, turn up at the dealership and make a nuisance of yourself.
Ask for the Service Manager, Aftercare Manager or Dealer Principal. The Service Advisor (receptionist) has no power to decide anything and the Sales team will have no interest at this point.
2024 - BMW i4 Grand Coupe eDrive 35 Sport
2020 - Volvo XC40 T4 Inscription
2017 - Audi Q3 TFSi Sport S-Tronic