Checking the Payza Helpdesk -- so far there's no issue or topic regarding a stopping of services; though there is a new issue on changes to the User Agreement
Source Reference --
User Agreement Update
I guess you just received spam/scare mail, intended for the one to give up their personal info of their Payza accounts by logging into a 'link' ( which is actually a phishing technique )
Always check the main site, rather than mail or pop-ups to avoid such tricks
( Just a head's up -- to make sure it's the secure Payza, check the address bar - there should be a padlock up there and it
must have a HTTPS header )