nextART accepts major credit cards issued in Canada, currently limited to Visa, MasterCard, and American Express, as well as payments made via PayPal. We do not accept any other payment methods online at this time. For assistance with your Sezzle payments, you can reach the Sezzle support team by email at shoppersupport@sezzle.com or call 1-888-540-1867. Their team is available from 8:30 AM to 5:00 PM CST Monday through Friday