Re: How to close account
If you don't do anything and never create a BandLab account then your Cakewalk account will be dead once BandLab turns off the Cakewalk servers.
BandLab indicated in the March 23, 2018 update the Cakewalk servers will be turned off "within the next few weeks" once BandLab has finished matching Cakewalk accounts with BandLab accounts.
You may want to access your Cakewalk account one final time to download the installation files for all the Cakewalk products you own. You may also want to take and save a screenshot of your account page since it has serial numbers for all products that do not require online activation.