For your offline Trial issue, go to the Contact Us page and complete the form below the "Select Topic" section. Someone will reach out to you and assist.
For your Subscription login issue, feel free to send me your Licensing.log file and I will have a look. The file is located in this folder... %APPDATA%\Quest Software\Toad for Oracle\Subscription\Logs. You may email it to me at michael.staszewski@quest.com