Last Thursday? See if they will replace it.
Did you buy auto batteries? Auto batteries and refilled cartomizers don't mix well. Auto batteries always have a hole in the middle of the threaded end and a necessary little drag switch right inside that hole. If juice gets in, it can do anything from make the switch sticky to short the connection and either pretty much ruins the battery.
Most people here use and recommend manual batteries. If you want to use auto batteries, you should always have at least one spare battery. I actually think everyone should have a 3rd battery for any ecig they depend on.
The Volt manuals do have a very tiny button (a bit hard to press) but a really nice totally sealed threaded end - juice will not be getting inside. The Vapor4Life manuals have a larger button and should have a mostly sealed threaded end (a seal inside the hole) but claim slightly less mah (charge length). I use both.
If you continue using autos - you need to try not to let cartos leak. I never use the condom method. I open the carto, tilt it and hold a bit of tissue on the threaded end hole, and drip into the stuffing. When done I tilt the open end down into a tissue and puff into the threaded end to clean the air channel. And if I want to make sure it doesn't leak, then while it is still aimed open end down I poke a soft point of tissue in the open end to touch the stuffing and wick off any loose juice. (Alternately you can put the bit of tissue in first, then tilt the open end down and puff into the threaded end). Before capping, make sure you can see light through the air channel and if you cannot, repeat the last step above. That carto will not have the most juice possible shoved into it, but it will be much less likely to leak.
