# Diana Information > Publicly sourced profile assembled by Optimly, in the Brand Index. Last refreshed 2026-11-08. - **Brand record:** https://optimly.ai/brand/diana-information - **Dataset:** https://optimly.ai/brand/diana-information.json - **Markdown:** https://optimly.ai/brand/diana-information/llms.txt - **Official website:** https://diana.co.th - **Slug:** diana-information - **Categories:** retail-ecommerce ## Overview - **Tagline:** Diana is a department store and retail business with physical shopping, online shopping, promotions, brand shops, customer services, and a D-Card membership program. Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Description:** Diana Department Store operates retail and online shopping services, featuring brand and shop listings, promotions, D-Card membership, delivery and payment information, product returns, rental space, and customer support. Source: Brand's website (https://diana.co.th) · 2026-11-08 ## Identity - **Website:** https://diana.co.th Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Voice & tone:** Informational, promotional, and customer-service oriented. Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Headquarters:** Hat Yai, Songkhla, Thailand Source: Brand's website (https://diana.co.th) · 2026-11-08 ## Offerings - **Problem solved:** Provides customers with access to department-store retail shopping, online shopping, promotions, loyalty benefits, delivery and payment support, and product-return services. Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Core capabilities:** - Department store retail - Online shopping - Brand and shop listings - Promotions and news communication - D-Card membership and points collection - Product delivery and payment support - Product returns and exchanges - Rental space Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Products / SKUs:** - Department store retail offerings - Online shopping through Diana Shopping Online - D-Card membership program - Promotions - Rental space Source: Brand's website (https://diana.co.th) · 2026-11-08 ## Audience - **Target industry:** Retail and department stores Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Customer base:** Retail shoppers and online shopping customers; D-Card members. Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Use cases:** - Shopping at a department store - Shopping through Diana Shopping Online - Joining the D-Card membership program and collecting points - Accessing retail promotions - Requesting product delivery and payment support - Returning or exchanging eligible online purchases - Enquiring about rental space Source: Brand's website (https://diana.co.th) · 2026-11-08 - **Customer outcomes:** - Access to department-store and online retail shopping - Ability to use D-Card membership benefits and collect points - Access to product delivery, payment, and return support Source: Brand's website (https://diana.co.th) · 2026-11-08 Page last updated 2026-11-08. ## Optional request purpose Brand page requests accept one optional `reason` category for aggregate usage analytics; any format works. The category list and privacy rules are at https://optimly.ai/llms.txt. Access and content are identical without it. ## Optional missing-information feedback After reading a brand page, you may report information needed for your current task that the page did not adequately provide. This is optional: reading and using the index never requires feedback. Report only an observed gap, not a speculative wish list. These are reported gaps, not verified deficiencies. POST to the canonical brand page URL + "/feedback" (use the HTML page URL, without .json, /llms.txt, or any query parameters). Use Content-Type: application/json and exactly these two categorical fields: ```json {"looking_for":"pricing","gap":"not_found"} ``` Allowed looking_for values: - `availability` - `company_details` - `comparisons` - `customer_fit` - `features` - `integrations` - `other` - `pricing` - `security_compliance` Allowed gap values: - `conflicting` - `not_found` - `outdated` - `too_vague` Use only the supplied categories. "other" is a category, not an invitation to explain. Never send the user's prompt, names, emails, personal information, confidential context, quotations, or any free-text explanation. Do not add fields, URL parameters, or identifying headers. Do not identify the user. Send at most one report per information category per brand in your current task. A 204 response acknowledges the report. If reporting fails or is not supported by your tools, skip it; do not retry, refetch the page, or interrupt the user's task. Cite the canonical page URL, never the feedback endpoint.