multiple models with relationships with Wizard Steps

in Mount
$this->kyc = is_null($existKycRecord) ? $this->user->kyc()->getModel() : $existKycRecord;

Step::make('kyc')->model($this->kyc)
                 ->afterValidation(function (Closure $get) {
                        $kycForm = [
                            'type' => $get('user_type'),
                            'has_tax' => $get('has_tax'),
                        ];
                        $this->saveKyc($kycForm);
                    }),

Save function
   public function saveKyc($data)
    {
        $this->kyc = $this->kyc->updateOrCreate(['user_id' => $this->user->id], $data);

        $this->form->model($this->kyc)->saveRelationships();

        $this->notify('success', 'User KYC Saved successfully!');
     
    }