Incompetence at its best

Experian SA refusing to remove a Nimble account from my profile. This account was settled in February 2020 and a paid letter was emailed to them. On the other hand, my credit information is not being updated, credit score is stagnant, not moving at all. When I try to call them, no one answer their phones. Experian SA is ruining the lives of the people due to their incompetence as all this is having a negative on our creditworthiness. Worst service ever.