Great Smelling, but lotta candle left behind

I LOVE this candle and the way it smells and the way it magnifies in multiple rooms. The only draw back for me is the fact that the candle doesnt burn completely & thoroughly. It made a, tea candle in circumference, tunnel as it burned and left more than half of the candle around the rim. In the end I am left with a lot of candle wax and no wick to burn. Unfortunately, I will not buy this candle again because if this reason even though it is very delicious in fragrance!