Why are SEO and SEM businesses considered high-risk for merchant accounts?

Name: Host Merchant Services - Credit Card Processing and Point of Sale for Small Business
Address: 250 Corporate Blvd L, Newark, DE, 19702
Telephone: +1 302-224-9837
Price range: $$

Due to frequent chargebacks, varying transaction sizes, lack of physical products, and longer fulfillment periods, they pose financial and reputational risks to processors, making them challenging to serve.