unauthorised creditcard charges

My credit card was debited on 23-10-2018  for € 79,90 by DRI*Trend Software. I have never used this company. I have never ordered anything. I do n't even know what they are selling or doing and would like to know where they got my credit card number from and would like credited
€ 79,90 back to my account immediately.

E.Y. Broer-Loth, the Netherlands.