Consumer Redressal

Dear Sir, My complaint is about service issues with Voltas AC. Had problem with servicing tried contact with customer care after so many attempts my issue was forwarded to Service Associate of Ahmedabad. After much follow up their service engg. approached us and told us that issue was with PCB unit, he took it to repair, after much follow up again he returned and confirmed that problem is resolved and we paid in full with visit charges as well, but within 24 hrs. same problem occurred, complaint was re logged, same engg. returned and took the unit back returned after few days and installed with great difficulties, after he was gone the unit started malfunctioning again and this time some indicators which were never there were lighting in the panel which was beyond understanding, we checked the same with the engg and his supervisor again and their response was we are required to change the unit again. The issue pertains to last year and the situation is status quo. Seeking guidance.