Disappointing first time service

I am writing to complain about the poor service that I have received so far from Teljoy, unfortunately I have had no joy. I placed an application for an order on 27.11.2017 at night and I received a prompt call from Charlton on 28.11.2017 who advised me that I sent the incorrect details, he them advised me that he will send me an email for me to forward the correct details he said that I would get the email in a few hours, I received nothing. I then sent a complaint online regarding this on 30.11.2017 and Charlton just happen to call me back at that point asking if I got the email because he has not received my paperwork, I told him that I had nothing from him and he gave me his email address over the phone and I sent my details to him. Shortly after that I received a text telling me that my application has been pre-approved pending information, and since then I have heard nothing. I did an online chat with Oliver on 05.12, advising her of this and she advised me that her manager would call me back, I am yet to receive the call back. So once again I went on the chat on 06.12, and spoke to Naomi who said that she will arrange a manager call back for me for the next day, as there are no managers on site, I then sent an email to your customers service team, and I magically got a call from Charlton, who then told me that the application has been approved and I just needed to sign the contract and that the item I had ordered will be sent to me, I then did as instructed and was then advised that the item will be delivered to me on Friday/Saturday, which has passed and I am still waiting for the delivery of the item. So once again I emailed the customers service team and, well, I am still waiting for a response of the 1st email that I sent, I am not quite sure what is going to happen with the 2nd email.