lack of service

im not sure what type of service providers you guys have..but im not happy with the lack of service!! I called you guys just after 08:30 am on Saturday morning -requesting help as my geyser is not heating up..we only have cold water..A simple thing ..soo I assumed. I specifically advised your consultant that we have a hydratherm geyser..(thinking she would make note of this)..was adv that TAT for the contractor to come through would be 1-2hrs.....3 hrs passed...I called in to track these contractors..was advised that they would call me....called in again - asked for their direct number and called them myself...was advised that they would come through shortly. your soo called contractors came through after 16:30pm...they inspected my geyser for a few minutes ..and was advised that they are not fami**** with the type of geyser we have ???? soo an electrician would come through Sunday morning ?????? as it was too late in the day...wow hey!!! I have received 0 calls / no communication from ur service provider ..and im still sitting with no hot water....please tell me what type of service this is ???