Allen was asked to perform on 3D chat website Second Life from the comfort of her home about five years ago.
According to the Independent, she turned down the offer as the virtual currency was worth only a small amount at the time.
The 28-year-old said she regrets the decision, as a single bitcoin is currently valued at 974 dollars.
Allen's fortune could be worth more than 20 times her six million pounds reported worth had she accepted Second Life's offer, the report added.
--ANI (Posted on 09-01-2014)