I hope this email finds you well. I am writing to bring to your attention an issue we have encountered regarding the uploading of IDs to a specific user list.
On November 24th, we uploaded approximately 1 million ad IDs to a particular user list. However, today, during a chat with the Google Help Center, we were informed that only around 26,000 ad IDs have been registered. This significant discrepancy is of concern to us, and we are seeking technical support to understand and resolve this issue.
We would appreciate your prompt assistance in addressing this matter and ensuring that the proper uploading of IDs to the user list is resolved. If additional information or clarification is needed from our end, please let us know.
Thank you for your attention to this matter, and we look forward to your assistance.
Best regards,
Dongsu Seo