Poor customer service

I have been requesting an a November invoice by calling the call centre for the past week. They repeatedly sent me an October invoice. On Friday 4th December, the last consultant I spoke to said, I would get the correct invoice within 2 hours after having explained how many times I phoned and kept receiving an incorrect invoice. I had to phone again Tuesday 8th because the one promised to reach me within 2 hours never came through. Again an October invoice was emailed. I phoned again and spoke to Simon Mabaso, who then told me he cannot get an invoice as early as I need it, I have to wait for 24 hours. I then requested to speak to a senior person. He then told me from where he is seated he can see there's no one available, time was around 15.45. I requested he transfers to me other senior personnel, he told me he cannot do that because he has to leave the building to do so. I cannot believe they cannot do a simple job as to get me the correct invoice nor let me take this up with their management. *** & ***<br> I hope some descent person will get this sorted.