Did you freeze your candles?
Sometimes, that makes the necessary difference.
I have mistakenly left some of my most favorite pillar candles on the top of my fridge behind a basket that I kept my cookbooks in. I purposefully hid them in case hubby decided to go through my treasures and toss anything. However, by my doing so, some have become marred with heat. I have been able to keep my spices in our larger freezer so I may tuck them in there if I return to his house.