A bad experience with clear score

I have an enquiry added to my report which affected my score badly, from 640 to 0. and when I contact clear score to dispute what is added on my credit score they are telling me to contact the company myself and I have no idea which company to check as the added enquiry is " SBSA e plan" at first I thought it is standard bank,, so i contacted the standard bank an they have confirmed it's not theirs. Why is it that when an enquiry is added on our credit report it's all my responsibility to check what is from but when it's my fault I will be reminded every day of my life? I'm growing frustrated of this as it is affecting my future financial plans and my livelihood.