An oil lamp is not electrical, but let me help where I can.

Perhaps you can find your lamp here:

Aladdin Oil Lamps - the world's finest non electric lamps

And contact the manufacturer directly for assistance.

Here are some other sites that may help:

Aladdin Kerosene Lamps

One with instructions:

Aladdin Mantle Oil Lamps - CrystalFallsTradingCo.com