Combine data from several forms Django

I have 3 different forms like so:

class Questions(forms.ModelForm):
    class Meta:
        model = Client
        fields = ['life_areas', 'life_desires', 'life_ambitions',]        

class BasicContact(forms.ModelForm):
    class Meta:
        model = Client
        fields = ['status', 'first_name', 'email_address', 'country',]

class PhoneContact(forms.ModelForm):
    class Meta:
        model = Client
        fields = ['phone_number', 'best_time', 'preferences',]

I have created a form wizard that gathers information using these three forms.

FORMS = [("questions", Questions),
     ("basiccontact", BasicContact),
     ("phonecontact", PhoneContact),]

class ClientFormWizard(SessionWizardView):
    form_list = FORMS
    def done(self, form_list, form_dict, **kwargs):
        # get data from the forms
        questions = form_dict['questions']
        basiccontact = form_dict['basiccontact']
        phonecontact = form_dict['phonecontact']

        formdata = dict(questions.items() + basiccontact.items() + phonecontact.items())

        clientform = ClientForm(formdata)
        new_client = clientform.save()

        # return redirect(...)

I am basically trying to concatenate the information from the three forms into a single ClientForm and then save it. However, I am not sure how to concatenate information from the three forms. I tried doing it the dictionary way, but it didn't work. What is the best way to accomplish this sort of concatenation?