Phishing from ImasFinance

I have been a member of Imasfinance for almost 25 years. During this time they retained bonusses as per agreement. In 2023 I requested termination of membership, whereafter they closed the account and paid out the retained bonusses. Now, all of a sudden I started receiving messages that I owe them money. All the messages have clear signs of being fishing ****s: spelling mistakes, the messages directed to three different people, the banking details different from the listed banking details on the website, no indication of the reasons why I owe any monies, the allegation that I disappeared, they could not contact me but none of my contact details changed.. I phoned Imas in Secunda and they said my account is clear. I forwarded the received messages to Imas but it remains a deep dark well, no response from Imas. Thus, I do not trust Imas's administrative abilities or ability to protect customer confidentiality. It appears as if some individuals in Imas are trying to ***** from customers and Imas management does not protect the member's interests. They do not react to confirmation whether these activities are phishing or legit.