Nokia India — nokia 6.1 plus

I have given my device for repair in a nokia care centre in abohar, punjab which was having a problem of charging jack and black screen on 7/01/2019. They gave me an estimated time of 15 days. But i have not received my device till date as 23 days passed and still the company is asking for one more week from last three weeks and did not update me about any progress. The nokia care is a bit stringent in nature.