Form Validation is not working at all

When trying to validade my form, I got no changes to the slot values that were supposed to be corrected. The idea here is to get the extracted slots to be clean and formated accordingly.

class ValidateHealthInsuranceForm(FormValidationAction):
    def name(self) -> Text:
        return "validate_health_insurance_form"

    def validate_name(self, slot_value: Any, dispatcher: CollectingDispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> Dict[Text, Any]:
        
        # Clean and Captalize
        slot_value_clean = clean_text(slot_value)
        print(f"Name={slot_value_clean}")
        # Check if the response has irrelevant info
        if re.search(r'\b(valor|preço|plano|idoso|idade|quanto|cidade)\b', slot_value_clean, re.IGNORECASE):
            dispatcher.utter_message(text="Please fill the form correctly.")
            return {"name": None}  # Invalid data
        return {"name": slot_value_clean}

    def validate_city(self, slot_value: Any, dispatcher: CollectingDispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> Dict[Text, Any]:
        # Clean and Captalize
        slot_value_clean = clean_text(slot_value)
        # remove accent
        city_normalized = remove_accents(slot_value_clean.lower())
        # Get the right names for cities
        city = CITY_MAPPING.get(city_normalized, slot_value_clean)
        if not city:
            dispatcher.utter_message(text="Please fill it correctly.")
            return {"city": None}  # Invalid data
        return {"city": city}

    def validate_ages(self, slot_value: Any, dispatcher: CollectingDispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> Dict[Text, Any]:
        cleaned_ages = process_ages(slot_value)
        if not cleaned_ages:
            dispatcher.utter_message(text="Please enter valid ages(ex.: 30, 35).")
            return {"ages": None}  # Invalid data
        return {"ages": cleaned_ages}

    def validate_cnpj(self, slot_value: Any, dispatcher: CollectingDispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> Dict[Text, Any]:
        slot_value_clean = clean_text(slot_value)
        if re.search(r'\b(valor|preço|plano|idoso|idade|quanto|cidade)\b', slot_value_clean, re.IGNORECASE):
            dispatcher.utter_message(text="Please enter info correctly.")
            return {"cnpj": None}  # Invalid data
        return {"cnpj": slot_value_clean}

    def run(self, dispatcher: CollectingDispatcher, tracker: Tracker, domain: dict) -> List[Dict]:
        # Get clean and validated slots
        name = tracker.get_slot('name')
        city = tracker.get_slot('city')
        ages = tracker.get_slot('ages')
        cnpj = tracker.get_slot('cnpj')

        # Check if slots are filled
        if not name or not city or not ages:
            dispatcher.utter_message(text="Please enter info correctly.")
            return [SlotSet("name", name), SlotSet("city", city), SlotSet("ages", ages), SlotSet("cnpj", cnpj)]

        # Final formatting
        ages_str = ', '.join(map(str, ages)) if ages else "Not informed"
        message = (
            f"Great! Let's conform everything:\n"
            f"Nome: {name}\n"
            f"Cidade: {city}\n"
            f"Idades: {ages_str}\n"
            f"Possui CNPJ: {cnpj}\n"
            f"Are they correct? (Yes/No)"
        )
        dispatcher.utter_message(text=message)

        # Add action_listen 
        return [SlotSet("name", name), SlotSet("city", city), SlotSet("ages", ages), SlotSet("cnpj", cnpj), FollowupAction("action_listen")]