Custom Action that calls "save" doesn't actually save the model

Grid::make('card_payment')
    ->visible(fn($get) => $get('payment_method') === 'card')
    ->schema([
        TextInput::make('balance_used')
            ->label(__uf('use balance'))
            ->hint(__uf('balance available').': '.money(auth()->user()->balance, env('CASHIER_CURRENCY')))
            ->numeric()
            ->minValue(0)
            ->maxValue(auth()->user()->balance)
            ->live(debounce:500)
            //->afterStateUpdated(fn($state) => dump($state))
            ->prefix('€'),
        Actions::make([
            Actions\Action::make('paybycard')
                ->label(fn($record, $get) =>
                    __uf('proceed to payment').' - '.money($record->order_total + $record->shipping_cost - ($get('balance_to_use')?:0), env('CASHIER_CURRENCY')))
                ->submit('save')
        ])->fullWidth()
    ])