Unauthorized credit check

Getbucks made an unauthorized credit score enquire and said that I app**** for a loan with them. I want this removed from my credit report. I don’t have any loans with them except for the ones in the past. How did they gain access without my consent. I am disputing this please ensure that credit enquiry is gone . I am also disputing it with TransUnion. This negatively affected my score it seems as if j am desperate for credit for something I do not know about. I am very furious because I do not even have an active loan or tried making a loan.