If you are a Facebook user and have any security-related concerns, you can contact Facebook in various ways. Besides, it is best to call the FB representative directly to access quick support.
In case you don't know 'How do I contact FB by phone? It's a straightforward method. You can get the number on the Facebook help center page and then call on it. Here is the step-by-step procedure you can follow to have a better understanding of the whole procedure.
A step-by-step process to contact Facebook customer service over the phone
Conclusion: You can contact FB by phone anytime now by using the Facebook phone number and following the procedure above. In addition, if you want to explore other contact options, you can connect via Email, Facebook Chat for business users, Social Media, etc. Most of the queries are listed on the Facebook help center page and community; you can visit these pages to fix the issues at your end.