The STACK phone number for contacting the US support team is (866) 702-6078. Those who are calling from Canada should dial (888) 312-6723. Professional STACK customer service agents can provide you with information about available solutions and help you choose the one that best meets your needs, address all payment questions, resolve technical issues with your account access, and offer details about the program demo, among other services.
The STACK email is support@stackct.com. For privacy inquiries, please contact the company at privacy@stackct.com. For marketing inquiries, please send them to marketing@stackct.com.
Are you thinking about joining the STACK team? Send your career inquiries or CV to hr@stackct.com. Alternatively, you can send an email directly from the STACK website.
The company has two headquarters, based in the US and Canada. The STACK address for the US office is 9999 Carver Road, Suite 300, Cincinnati, Ohio 45242, USA. If you need to mail to the Canadian office, please send your letters to 45 Place Charles Le Moyne, #105, Longueuil (Québec), J4K 5G5, Canada. While mailing is still an option for contacting corporate offices, calling or sending an email is more effective for urgent issues.
The STACK customer service agents are available during regular business hours. All issues can be addressed by phone or online. Please be aware that the usual operating hours may be affected by public holidays, and the company may be unavailable. Therefore, response times may take longer than normal.
Currently, there is no STACK live chat on the company’s website, but customers can submit messages via an online form. To send a message, get to the “Contact Us” page by following the link at the bottom of the page. Afterwards, type in the required information and send the message once you are ready.
