Sim Swop Problems and issues

I lost my sim card last week `tuesday. i was told the process to follow was to get an un - Rica sim card and give the call centre a call to do a sim swop and activate the new sim card. i called the call centre on Friday Morning 8 AM to get this issue sorted. i gave them an alternative contact number for that weekend to get hold of me. Come o=Monday morning i still had not heard from the sim swop department. Monday morning i called the department call centre again to sort this issue out and was told that they cannot help me now as i now was not in contact anymore and did not have a number on which they could call that i would be around long enough to wait for them. i have since then called them 5 times, spoken to an extremely rude Supervisor who in turn put the phone down in my ear as he could not help me and would not even try. i am now still waiting for the call even though i have made a plan to get a number to which they could call me. i have countless reference numbers and still no luck. i have now been without a phone for 4 days and i need it to run my company. i am extremely annoyed and irritated as this is not the first time i have had a problems with the *********** staff.