Johnson Geyser — complain about repair service of johnson geyser water heater

We purchased 25 ltrs of johnson geyser during 2008. Last month i. E.in august 2018 it was not worked and got repaired on 14.8.2018 from the johnson service centre one mr. Siddharth came and he gave bill for rs.3250/-. Now, water is heating but a burning smell is coming while the heater is working. We again called the technician, mr. Siddharth. He told he himself will call and come to attend the fault. But two days over he is not coming and now if we call his mobile number, he is not answering and the johnson service centre contact number also not answering. Now we feel instead of doing repair for the old one, we can purchase a new geyser. Service is very bad and dont make repair work for the old geyser.