Jaquar — Jaguar customer service not responding. A Diverter not working Vignette series

Address:

D66 Deen Dayal Nagar Phase 1 Moradabad

I have Jaguar bath fittings in my house having six bathrooms, three kitchens. One diverter is not working since April 2020. I tried to complain many times but the toll-free number is not connected. I waited untill lockdown is lifted but still the toll free number is not connected. Please help me to get the service as soon as possible. The copy of bill is attached. The products are under warranty (10 years).