Bank Fraud

I woek up this morning and noticed a transaction for 140.99 from DIGITAL STAR 442081237 442081237377. Not only have I never heasrd of this compnay, but I definately have not purchased anything from them. I immediately contacted my Credit Union who (since it was Saturday & the branches were closed), advised me to dispute this transaction with my Credit Union and they would research this. I am unemployed, so this $140.00 REALLY means a great deal to me. I can not believe that companies and steal information and charge innocent people for things they did not purchase or authorize! I also have an Amazon account that I have not used in a long time. I am also going to immediately take all credit/debit card information off of their site as well! Looks like I need to cancel my card and get a new one too.