BAD SERVICE FROM HELEN MAIER

I spoke to a Bianca to arrange a service on my Sun Tank, she told me that I first need to pay the fee for the service and with in a week the service will be done, yesterday i got a email from Helen who told me that the service is only booked for the 30th ( more than 1 week ) , I have send an email to Helen to explain to me why do I have to pay first and then after they confirmed that they received the payment they only confirm the appointment for a later date as what Bianca told me. I have ask Helen to please send me a manager or owners number but only got a reply to see number on her signature, and that she is the manager for bookings and there is no owner just share holders. I need to speak to one of the shareholders about the manner Helen is treating her customers , can you please assist so that I can speak to someone higher that Helen as she is no help to no one. If you take someone money and agreed on a service I expect that you do that.