Squarespace customers should always go directly to www.squarespace.com and sign into their accounts from there. If there is something that they need to do, they will be notified after signing in. And, if they are still unsure, they should pick up the phone and contact Squarespace to verify.
A "Squarespace Account Suspension" Scam
From: "Squarespace" <SquarespaceSupport@informationcomapny.com>
Sent: Sun, 29 Apr 2018 at 0:10
Subject: Your Squarespace account suspended
Thank you for choosing Squarespace
We’ve successfully suspended your account due to failed or incorrect billing information. Here’s some important information about your subscription:
What you have to do?
To reactivate your account update your billing information
Personal - Monthly
NOTE: Failure to do this might lead to account closure
Squarespace customers who have already been scammed are asked to contact Squarespace for help.