> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://poinz.crisp.help/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # Iā€™d like to make a change to my stamp card ā€” what should I do? Please get in touch with your dedicated sales representative or contact our poinz Business Support: šŸ“ž +41 44 515 85 60 šŸ“§ [info@poinz.ch]() šŸ’¬ WhatsApp: +41 77 515 03 98