Volkswagen India — yearly service - cluster light blinking

Address:

EVM Passenger Cars (I) Pvt. Ltd. Thiruvananthapuram - Kerala

Date of service[protected]
Invoice no. Pib2001785
Repair order no. Sob2001805
On above date my polo - comfortline petrol - car (2012) given for annual service. The only problem that i instructed sa to check is "cluster light blinking". On the same day evening, they given back the vehicle after servicing and replacing some parts and consumables like spark plugs, ribbedbelt, airfilter, engine oil etc. And with a report that everything is ok. But when i checked the vehicle with a short drive after 2 days, the problem of "cluster light blinking" is still there and even some times the a/c compressor is not working - only fan is working. Not only that after driving for nearly 30-35 kms., if we restart the vehicle, the entire cluster light will disappear and can start only after two or three trials. When i called the service adviser to complain about this, he didn't picked up the phone. As per their report they had confirmed that the battery is in good condition (Nearly 4 years old).