def send_followup_email_for_monthly_fee_payment(email, event_name, date, amount, payment_url):
 send_email(to=email, action=MONTHLY_PAYMENT_FOLLOWUP_EMAIL, subject=MAILS[MONTHLY_PAYMENT_FOLLOWUP_EMAIL]['subject'].format(event_name=event_name, date=date), html=MAILS[MONTHLY_PAYMENT_FOLLOWUP_EMAIL]['message'].format(event_name=event_name, date=date, payment_url=payment_url, amount=amount, app_name=get_settings()['app_name']))

def send_followup_email_for_monthly_fee_payment ( email , event_name , date , amount , payment_url ) : send_email ( to = email , action = MONTHLY_PAYMENT_FOLLOWUP_EMAIL , subject = MAILS [ MONTHLY_PAYMENT_FOLLOWUP_EMAIL ] [ 'subject' ] . format ( event_name = event_name , date = date ) , html = MAILS [ MONTHLY_PAYMENT_FOLLOWUP_EMAIL ] [ 'message' ] . format ( event_name = event_name , date = date , payment_url = payment_url , amount = amount , app_name = get_settings ( ) [ 'app_name' ] ) )
send email every month with invoice to pay service fee .