Dissatisfactory customer care

I purchased a geyser at Cashbuild on the 2019/12/17. On 2021/08/07 it started leaking. I then called Cashbuild to report the fault on the 10th. I spoke to Julias Mukundwi (manager) who was not able to capture the information correctly. When he logged the fault all the information was incorrect. I then called again and spoke to Onica who is his assistant. Onica was very rude and dismissive on the call. I then sent an email to complain. On 2021/08/11 they then sent 2 so called technicians (Hulisani Phophi and Mlindeni Mgaga) to come and resolve the issue. Hulisani just took the picture and sent it to his team leader Mr JP Rance from a company called Electrolux. He then told them to tell us that the geyser is faulty without even testing it. I requested Hulisani to explain how did he get conclude that the unit is faulty without even testing. He says that is what was advised by the team leader through the phone. I do not even understand as to how do they send people who are not even qualified to do the job. When I questioned Hulisani. He just left me standing as I tried to make him see reason that I do not understand what he was saying as he was using the geyser terms (plumber jargon) which are not fami**** to me as I am not a technician nor a plumber. The level of disrespect and pathetic service that I have received in the two companies is astonishing. The two technicians just drove off and left the papers that I do not understand and advised me to call Cashbuild as they will not repair nor replace the geyser. I even asked him to explain the technical terms as I did advise him that the previous geyser I had was only replaced after 5 years. How come does the one that they sold to me does not even last 2 years? The cherry on top is that they came here at 16:23 and were in a hurry to knock off, they hardly spent 10 minutes. Is that really how long it takes to carefully analyse an issue? Heck, these technicians even witnessed my elderly parents’ state of health yet they did not even show compassion nor give us the courtesy of an alternative solution for the geyser situation. I’d advice anyone who ever wants to purchase from the above-mentioned store to reconsider their choice because should anything happen, Cashbuild’s service partner is very *********** and does not attend to customers in a civilised manner.