******* car registration by Iemas financial services

Iemas financial services changed vehicle registration on the car I am still paying financed by them. Today my brother qent yo the traffic department in Centurion to renew the disc to be told that the car is registered under Iemas financial services.how did that happen . I have been able to renew the disc since I bought the car in 2016. How did they so this and now the car is not licensed and not insured becasue the disc expired. Please help me