I don't see a support case with your username or email.
You're on the free plan now but the invoices were sent on March 1st. You'll need to file a support case on our help page.
What is your support case #? You get it at the end of filing a support case, or you can see it if you log into your account on the help page by going here: http://www.auctiva.com/help/ListofUserCases.aspx
Which I did and there was no case filed.