| https://www.phantasystaronline.net/forum/index.php?/topic/44314-full-list-of-bookingcom-customer%C2%AE-service-contact-numbers-in-the-usa-2025-guide/ |
| https://www.phantasystaronline.net/forum/index.php?/topic/44554-full-list-of-bookingcom%E2%84%A2%EF%B8%8Fcustomer-service%C2%AE-contact-numbers-in-usa-a-ultimate-step-by-step-guide/ |
| https://forums.cougarfan.com/t/quick-list-of-official-booking-com-contact-numbers-in-the-usa-full-detailed-guide/11702 |
| https://forums.cougarfan.com/t/full-list-of-expedi-customer-service-contact-numbers-in-the-usa-2025-guide/11787 |
