Go to business.facebook.com and log into the account that has access to your verified business asset(s). Click Meta Verified in the left menu, then click Contact support. Select the issue you’re experiencing, then select the business asset(s) you need support for.

But There is no direct contact option or email address for facebook business support. You can chat with Facebook support by logging into your business account and accessing the accounts center under settings. This feature is available to active advertisers, allowing customers to directly message support for help with recognized issues.

We found some email addresses on the internet study: 

Facebook Email: facebook.android@fb.com
Facebook Email: phish@fb.com

Facebook Support Link: https://www.facebook.com/business-support-home/

Facebook Monetization Support Link:

https://secure.facebook.com/facebook_pay/help