Kwikot poor geyser quality and service

Probably the worst service I have experienced. 3 geyser replacements in a 4 year period. I would love to change geyser manufacturers. Geyser burst on Sunday, called Paul on Monday at 8am who acted like he logged the call. spoke to Stephanie who promised a call back with a reference number. at 10.30 called the national number only to be told that nothing was logged. 13.20 and they say a plumber will call you in 24 hours to arrange a time. I don't know how you stay in business.