All you need is an iron, a few paper towel sheets, and your wax-covered carpet. The size of the wax spill wasn't that large, only about the diameter of a drinking glass.
Start off by heating your iron to the lowest setting possible, depending on your carpet fibres. I set mine to 2, or "cotton". Anything higher than that, and my carpet will melt! Once your iron is hot, place one sheet of paper towel over the wax spot on your carpet. Slowly go over the paper towel with your iron. Try not to make contact with the carpet and your iron.
You can see the wax being absorbed by the paper towel when it leaves an oily "wet" residue behind. This is the wax that is melted from the carpet and caught on the paper towel.
Continue "ironing" over top the paper towel, until all wax is removed from the carpet.
And you are left with a nice and clean carpet, as if nothing ever spilled!