Problems Connecting My Primary Domain

[Tirecore]

I'm the owner of mach1tires.com which use to be set as my primary domain in my free hosting account. You can see its subdomains in my hosting account summary
Hosting Username: m1t
Hosting Server: Starka
Main Domain: tiretest.x10.mx
Sub Domains: m1.mach1tires.com, feedback.mach1tires.com
Addon Domains:m1.tireweb.x10.mx

Currently In my cpanel there are no subdomains and no addon domains but it still says i have them in my account summary. I would like to make mach1tires.com my primary domain again but it says that its already being used, is this because the subdomains are still listed in my account? This domain should not be associated with any other accounts.

Please Help!

Attached, Screenshots: Hosting Account Summary, Cpanel Addon Domains & Subdomains