I tried to close an account with speedway, because they were identified by apple as a data breech. I called customer support and asked that the account be permanently deleted. I wrote an email to them and it bounced. what should I do to resolve this?

I have detected MULTIPLE problems with electronic surveillance on all my devices recently. a data breech was identified by apple on my iphone with my speedway account as the source of the breech. I contacted customer service by phone and they assured me that they would delete the account. I went online to see if they had corrected the problem and found that the account had only been locked for multiple failed attempts. I immediately checked my email and it was from speedway, that they had locked the account, not deleted the account. I expressed to them that I wanted the account DELETED, not just locked. The email was returned as being "bounced" and I  don't have the knowledge base to deal with these people. I am involved in a police misconduct case as a victim. My calls are being intercepted by a UCCX intercept in Franklin, TN. I am seeing strange listings for web activity on my Google accounts in Illinois. I live in Tennessee. I need to find out how to handle these people. Is there a legal recourse open to me to stop this? I would appreciate any help you could give me, thank you.