*** service from MTN

Happy to take the money but can't give me my friggin bill - infrequent supply of invoice and statement over the last few months. Have asked that I get them e-mailed to me on a monthly basis but find myself chasing for this. I called yesterday morning and was told it was sent on the 12th and that the lady would resend yesterday. Guess what no bill. So I called this morning to be told that the invoices are not loaded (different story that). My complaint was apparently escalated. So I called again ('cos those staff arrive at the office at 8am - action I thought) as nothing has come through. Called this afternoon to be told that I need to wait for 3 - 7 days to get my invoices and statements. Really - I am appalled at the lack of service and let's not forget that I then got cut off. I am not asking for money or anything but simply my bill dated 11 May 2015.