You are going to be redirected to the official website to finish the download when you click these buttons above.
Check your email for an activation link from Slack. Click the link to set your password and activate your account.
You can reach Slack customer service through their Help Center or by submitting a request via the app. Look for the "Help" button in the sidebar.
Go to the Slack website or app, enter your email, and click "Continue." Follow the link sent to your email to log in.
Slack does not publicly list a customer support phone number. Use their Help Center for assistance.