I bought an 18oz Carrot Cake Alpine candle and the wick was very deep into the candle and became non-usable because it was drownded by the candle wax. Is it possible to receive a new one? I love the Carrot Cake smell.

Turn the bowl upside down and use a match or much better, a cigarette lighter to melt the wax directly below (normally above) the black wick, moving the flame it back and forward. Watch out for hot wax dripping onto your skin!
Then turn the bown over and use a butter knife to scrape the wax above the wick away and remove the wax above and on either side of the wick. You may have to do this operation a few times, but eventually you should be able to gently get the knife under the buried wick and (gently!) prise it back into an upright position.
Don't do this roughly, or you could snap the wick off at its base, it needs to be pretty much out of the wax and softened by the flame before you try to bend it back up.

Then light the cantle and let it burn for ten minutes, until the wax all around it is clear liquid - then blow it out, and after ensuring that the wick tip is no longer glowing, quickly crush a few absorbent paper towels into the bowl and upturn it again. The aim is to allow the towel to absorb excess molten wax, which should preven the wick from being buried under wax again when the candle cools.

incorrect composition of the wax
excessive flammable component used--could be the oil used to get the fragrance

I use the carrot cake recipe on the BBC website and my family love it. Grating the carrots is a bit of a pain if you don't have a processor but it's worth it in the end.

http://www.bbcgoodfood.com/recipes/4425/carrot-cake

Try the Party City website for Minnie Mouse candles. They have a lot of cute Disney stuff. http://www.partycity.com/category/birthday+parties/cake+supplies/themed+birthday+candles.do

Yes I ordered one for my daughter's birthday. It really wasn't expensive and she loved it http://www.partywarehouse.com.au/products/BARBIE-CANDLE.html

Flameless candles are made from beeswax like regular candles but instead of a wick they use Led lighting to illuminate the candle. They look very realistic but are much safer than regular candles.