Do not sign-up with supersonic

We singed up for Fibre with supersonic on the 1st March, we have been phoning in everyday from last week Monday, each time we get a lie from the different consultants we speak to. On Friday I phoned in twice asking for a manager to phone me and I am still waiting. We received an email last week Wednesday to inform us our order was successful and that a they would be in touch to complete the installation, the lady we spoke to on Friday told us oh there is no order as yet, so which one is it now? You hold on forever to speak to someone and then they do not assist you, every time we hold on for more than half an hour, it's ridiculous.