SHOCKING SERVICE AND ON ONE WILLING TO ASSIST

I called in and spoke to the upgrade call centre yesterday, I spoke to a lady who informed me the Samsung S6 special they running is not in stock, she then informed me that stock should be arriving today and logged an order for me. This I got a missed call from Cellc and I tried calling back a few minutes later. This is where all the problems started!... I called the call centre and got through to Paula, I told Paula about the call I was expecting this morning and if she could find out what it was about at all... Paula informed me that there is a separate department that deals with the stock that calls out and it could be about the phone. I then asked Paula if she could not maybe get hold of the department or give me their number, Paula then tells me they don't take calls (yet they left a missed call for me and thus I don't see why they wouldn't mind talking to me)... I asked Paula for a manager to speak to to try ascertain what we could do in this situation. Paula just kept me on hold for about 10min and then put me through to customer service, the problems didn't stop here!!... then going through the whole story again the customer rep could not assist ethier just and put me throu