No customer guarantee.

John came and fixed my tv the power board- end is September 2021, the power board is kaput again this is mid November my receipt says 12 months guarantee. I have contacted him , he does not pick my calls and is not responding to my queries. I paid him a total of 1600 and we had a good dealing even have the receipt from his company. But now when I need help they don’t want to answer my calls. Just so sad.