What and who is DMC5?

When logging in clearscore, i saw that i am owing DMC funds of over 4k....who is DMC? And how did they get my details? They listed under credit cards... I have 1 credit card with my bank and no1 eles. I have never heard of DMC... And i have never recieved an email, letter or phone call from them...please have my details removed as per the POPI act as i ha e mo business with you!!! and make sure you guys remove yourself from my clear score because i do not owe DMC a single thing!!!!