"Hi! I'm Esben, the Support Manager at ArtRebels; Welcome to the ArtRebels Happy Customers' Department. We offer you around the clock customer service. For general inquiries, feedback, suggestions or comments, please send us an email at customerservice@artrebels.com or call us at+45 81 61 81 00! We endeavor to reply all queries within 24 hours"
Alternatively you can also check our Terms of Service in Buying at ArtRebels for more information.