Tata Automobile Corporation Sa
Terrible service

I regret The day I purchased a TATA ACE
The vehicle itself is OK but the after-sales service is shocking
after numerous calls / emails to TATA my list of complaints has not been dealt with
the complaints have been escalated to TATA head office and still nothing
not even an email in response
Is there anything more I can do to get my issues with this vehicle resolved
it just keeps getting worse

PLEASE HELP

Regards
Gary Tack