Glen — one of the burner is not working

we have purchased gas stove contains four burners about two months ago . One of its burner is not working properly from the very first day. We had registered a complaint regarding this after a week when we purchased it. We are facing too bad bad service from you glen .One guy came from glen agency and told us that i have noted your complaint and you will get a new burner in two or three days. Now one and half month has been passed .No one is picking our call in jalandhar based glen agency and burner is still in bad condition .