Heather your Gargoyle account and your phone have little to do with each other and your post omits a lot of information, making it very confusing. Follow the link above to reset the old Gargoyle account and take it back. If you take it back and reset the password it should be secure. Unless someone has hacked your computer or home router and is still getting your new credentials. Resetting your phone to factory should have cleared it but your best bet is to ask your carrier for help, to wipe it, test it, and download Lookout or another security tool.