No, it is not mandatory to have an ads.txt file when using AdSense Auto ads. While implementing ads.txt is highly recommended, Google AdSense will still serve ads on your site even if the file is not present. However, many advertisers prefer to bid on ad inventory that is verified through ads.txt, so having one can potentially increase your ad revenue.

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

Some of the best logo design websites in india:

• • Art Attackk
  • LogoMyface

• • 5dollargraphics
  • SimplePlan Media

• • 5dollarservice
  • Creative Orion.

Some of the best logo design websites in europe:

• LogoMyface
• 5dollargraphics
• 5dollarservice

Some of the best logo design websites in Italy:

1. LogoMyface
2. 5dollargraphics
3. 5dollarservice

Some of the best logo design websites in Australia include freelancer, Outcrowd, BrandCrowd, VistaPrint, Canva, and Crazy Domains.

Some of the best logo design websites in Bangladesh:

• 5dollargraphics
• LogoMyface
• 5dollarservice

Some of the best logo design websites in canada:

• GroupFractal inc
• BrandLume
• Vivid Strategy

Some United States Logo Design Agency :

1. DesignContest
2. Deal Design
3. Digital Silk
4. Upwork
5. Clay

You want to write posts, messages, E-Mail, or letters, without committing spelling mistakes.

There is a very simple solution to it.

Simply Use this Google Extension:

Grammarly.

Grammarly is a cross-platform cloud-based writing assistant that reviews spelling, grammar, punctuation, clarity, engagement, and delivery mistakes. It uses AI to identify and search for an appropriate replacement for the mistake it locates.

Add from here: https://chrome.google.com/webstore/detail/grammarly-for-chrome/kbfnbcaeplbcioakkpcpgfkobkghlhen?hl=en