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Contact GRAIL Customer Service

GRAIL Phone Numbers and Emails

Toll-Free Number:

  • 1 (833) 694-2553
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GRAIL Email:

Complaints/ Feedback
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How to Contact GRAIL?

Most Popular Number:

(833) 694-2553
Total calls: 27 Last call: Jan 26, 2026

GRAIL’s phone number, 1-833-694-2553, is a toll-free helpline for all queries and concerns. Users with general issues and complaints or those seeking to relay their feedback and suggestions to the company agents can call this number between business hours. That would ensure efficient assistance and an exceptional experience. However, calling GRAIL customer service might not always be feasible to resolve the issue, especially in complex and sensitive cases. Users with such concerns can consult the company offices in person for help.

Like the published helpline, the company has a single official email, pr@grail.com, available for all purposes. Emailing GRAIL customer service is best for general and non-urgent matters and ensures responses to user requests within a few hours or days. However, emailing personal and sensitive information might be unsafe and should not be considered. Instead, users can send a letter or visit the GRAIL address for safe communication and better assistance.

Customers unable to receive satisfactory solutions to their problems online can visit the GRAIL headquarters for better assistance between business hours. The corporate office is in the United States at 1525 O'Brien Drive, Menlo Park, California 94025. When visiting the head office, users should book an appointment in the relevant department over the phone beforehand for convenience. Those consulting via mail should provide complete details of their issue and additional proof to ensure effective solutions to their problems. If urgent, use the GRAIL phone number to consult for efficient assistance.

To contact the business agent via the GRAIL website, open it in your browser and click Get in Touch at the top right corner of the screen. That will direct you to several online forms on a new page. Complete it by providing your name, email, request type, and issue details. Once done, click Submit so GRAIL customer service can review the request and respond within two or three working days.

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Contact Information

GRAIL Website:

GRAIL Help Center:

Corporate Office Address:

GRAIL
1525 O'Brien Drive
Menlo Park, California 94025
United States

Summary of GRAIL Customer Service Calls

27 TOTAL
CALLS
00:45 AVG CALL
DURATION
0% ISSUES
RESOLVED

Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call GRAIL?

Shipping and Delivery Question:

  • “Description not consistent with the item I bought from the seller (1ckivesael) wise size is wrong ,instead of size 40,he put EU 42,i would like to give him back his shoes,and that he reimburses me.Item ID: 86775978. Thanks.”
  • “Check the package”
  • “Shipping problem”

Product/ Service Question:

  • “My purchase”
  • “Purchase issues”

Refund Question:

  • “Refund”

Staff Question:

  • “Customer service”

Account Question:

  • “My account”

Return/ Replace Question:

  • “Ordered a Nascar jacket yellow M$M jacket,it came to the Post Office in Hughes Ar 72348 supposed to went to 859 S Cowan St.Hughes72348 tje Post Office Return it to you guys My names Earl Smith lt”

Other Question:

  • “I have problem”
  • “Money”
  • “Selling issue”

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