Yeah, the merchant is eligible for chargeback for the true issue. If there is a fraud transaction then they are not eligible to get a chargeback. If the merchant has an EMV chip, but he is not able to make an EMV chip transaction, then in this scenario, he is eligible to get a chargeback. For further issues, use the contact Cash app by phonenumber. https://www.googlehome-page.com/cash-app-customer-service-phone-number/