HARRASMENT FROM COLLECTIONS

I have complained about Ackermans and their collection agency before and I thought this issue was fixed. I frequently spammed with emails of account in arrears. I do not have an account with Ackermans or any of its sister stores. The name whom the emails is addressed to is not mine. The call centre agent called the account holder who confirmed that my email address was hers, which is impossible cause we cant have the exact gmail account and both active.