Online Access to my Ring Account

I’m experiencing an issue involving access to my Ring account from my PC that I’ve never had before. When attempting to access my account from the “ring.com/users/sign_in” page, I get the response “Too many attempts. Please wait a few minutes, then try again.” Well, despite waiting more than “a few minutes”, I am still unable to access my account. I’m not sure what “too many attempts” means; if I did, I might be better able to manage access to my Ring account. Perhaps Ring should post the login criteria on the Login page. So...I’m still not able to access my Ring account from my PC. Is there a customer service number I can call to rectify the problem?