Bosch Home India — Complaint about washing machine

I called bosch custome service and they send some techincian whose contact number and name is not known by customer service.. he didn’t do any service and took 800rs service charge. When asked for bill he asked to contact customer service for which even bosch service center has no clue.. now they have sent another guy name sanju.. even he didn’t give proper info..
Bosch service center is just a scam.. they just loot customers money and all the products are fake.. its just 5 years front load washing machine and the drum not working and they are asking 19000 to change the drum for which there is no warranty .. the cost of machine ist 26000