A Facebook Ads account is a specialized account on Facebook's advertising platform used to create, manage, and monitor advertising campaigns. It allows businesses and individuals to design ads, set budgets, define target audiences, and track ad performance.

A Facebook Agency Ad Account is a specialized account used by marketing agencies to manage multiple clients' Facebook advertising campaigns from one central platform. It allows agencies to efficiently create, run, and optimize ads for different businesses. It provides advanced tools and permissions to handle various accounts, track performance, and ensure compliance with Facebook's policies.

Facebook supports major credit and debit card companies like Visa, MasterCard, and American Express. You can also use a PayPal account if it is connected to your ads account. On the other hand, you can pay Facebook through your bKash-linked debit card or direct bank transfer.

Currently, Facebook ads payment does not support direct bKash integration. But you can use a bKash-linked debit card or transfer funds from your bKash account to a bank account that is connected to your Facebook Ads Manager.

The cost of Facebook ad agencies can vary widely based on several factors, including the scope of services, agency reputation, and the complexity of your advertising needs.

A personal ad account is designed for individual use, limiting ads to personal promotions and lower budgets. In contrast, a business ad account, accessed via Facebook Business Manager, offers advanced features for managing multiple campaigns, targeting options, and detailed analytics for businesses.

In Bangladesh, a Facebook Ad account itself is free, but managing it involves costs such as ad spend, which varies based on your budget, and agency fees, typically ranging from 10% to 20% of ad spend.