Compromised Settlement with Groenewald Lubbe bad

Hi there.

On the 18 February 2022 I was offered a Compromised settlement on my account that was 50% off and they have explain to me how does this compromised settlement works, I have paid it on the 22 February 2022 and I have forward the proof of payment and the statement in this email ***/*** showing that the account has been paid as per compromised settlement. on this a/c no FNB ***but still I receive threatening messages. pls help