Faber — Faulty Gas burner

The Faber gas burners are faulty and need to be replaced Every year. I purchased this Faber gas hob 2 years ago and have already replaced the burners twice paying rs4000, each burner costing rs2000. Now again the burner is giving trouble and will need to be replaced. If this problem continues, I will be spending rs4000 every year because Fabre is manufacturing faulty gas burners. I am attaching a picture to show that there is a gap between the burner parts, because of which the flame doesn’t burn properly.