Did you use the form associated with this Customer Support article? https://support.logmeininc.com/central/help/how-do-i-contact-support
You don't have to call into the Support Department, but you must go through that specific contact flow for billing assistance.
I have an account in your database with the name Luan Lima, and email firstname.lastname@example.org. I am not using this account anymore and would like to formally request the remove of all my personal and private details from your database, please delete the account and also erase notification, if any.