Rude Staff and a ******* when it comes to warranties

Our geyser packed up on a friday morning at 5 in the morning. The geyser was still under warranty. We sat without hot water all weekend. Monday morning the plumber came out to inspect. Heat tech then called and said that they changed their product and that the geysers are now bigger and dont fit through the manhole. We have to cover the cost of opening our roof to fit the geyser in. On top of it all, the person working at Heat Tech who phoned us, namely Thabiso, had the most disgusting, bad attitude that we have ever come across instead of trying to be understanding, remain calm and collected as would be expected from a service provider in all circumstances. Thabiso even went as far as telling us to bury the geyser underground! It is highly unacceptable that a customer gets treated the way that Thabiso treated us, no matter what the reason. That is not how customer service works. Do NOT make use of Heat Tech products or services - save yourself the stress, sleepless nights, high blood pressure, anger, dissappintment and costs out of your pocket because they change their product! They are a joke!