Bad Customer Service

I went to the mtn store at the paddocks on Friday the 13 March to do my upgrade only to be told the system was offline and I should come back the next day. Which I did and then only to be told I have reach my credit limit. I phoned mtn 808 and they told me I had not reached my credit limit. I then phoned mtn paddocks on Monday the 16 march and Michael the manager on duty said he will get back to me. I called again the afternoon. This time he was busy and was told he would call me back which he did not do. I called mtn direct to order the phone through them which they said no problem they will deliver it to me in 3 to 5 working days. Today is the 20 March and had not received my phone. So I called mtn direct to find out where the phone is they then told me the courier was at my work on the 19 March to deliver the phone and I was not there. This is such a load of bull because I was at work the whole day and if they were here why did they not call me? So now they have to book another delivery for me which they said will only happen on Tuesday. So much for the 3 to 5 working days for delivery. I am so disgusted in the service I received from mtn and by far the worst.