Hi there, lucie1.
Welcome to the Community. I appreciate your interest in payment solutions available in QuickBooks. I'd be glad to provide some information.
QuickBooks Offers payment processing through what is referred to as Merchant Services. Having a Merchant account allows you to process customer payments, manage credit and debit card transactions, ACH transactions, and eCheck payments all in one space so you can get paid faster.
I've got an article you that covers additional details on using Merchant Services. You can check it out here: https://quickbooks.intuit.com/community/Payments/Process-a-payment-in-Merchant-Service-Center/m-p/18....
A member of the Sales Team will gladly get your Merchant account set up for you. The number to speak with an agent is 1-877-683-3280. You can find the contact information at https://quickbooks.intuit.com/.
I wish you and your company continued success. Please let me know if you have any other questions.