No Hot Water

Our geyser gave in on Saturday On Sunday the plumbing company came out and told us its a waranty claim Heat Tech needs to replace the geyser.On Monday i waisted all my airtime trying to get hold of Heat Tech but to no success.I contacted SIL spoke to a lady and said she will make arrangements with one of there plumbers to get the problem sorted out still waiting.Im begging you guys to please sort out this problem we are without hot water for the last four days and we hadmassive cold fronts its not a joke please im begging