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Contact Four Sigmatic Customer Service

How to Reach a Person at Four Sigmatic

Verified Contact Information

Toll-Free Number:

  • 1-855-400-8584
Call customer service
Send Message

Customer Service:

  • 1-213-699-4616
  • +44 778 233 5749
    For Text (Outside of the US/Canada)

Four Sigmatic Emails:

Accessibility
Business Customer Service
Wholesale
Customer Service
Jobs/ Career
info@foursigmatic.com

Four Sigmatic Customer Service Overview

The aggregated data is based on calls made from PissedConsumer.com website and questionnaires provided by PissedConsumer.com users.
Most Popular Four Sigmatic Phone Number
1 (855) 400-8584
Average Calls duration
4 minutes
Most Popular Four Sigmatic Email Address
support@foursigmatic.com
Issue Resolution Rate
Low (0% reported full resolution)
Contact Method Distribution
91% phone, 9% email
Common Reasons for Contact
Activation/ cancellation, refund and return/ replace
Call Volume by Day
sun
mon
tue
wed
thu
fri
sat
View full overview ›

How to Contact Four Sigmatic?

Most Popular Number:

(855) 400-8584
Total calls: 36 Last call: Apr 15, 2026

Users seeking to consult the company agents for general inquiries and assistance can dial the customer service helpline, +1-213-699-4616. The toll-free Four Sigmatic phone number 1-855-400-8584 is also active for similar purposes. Those outside the USA and Canada can call +44-778-233-5749 for information and help. However, note that responses to calls are not immediate and can take 48 to 60 hours. Still, it is the best way to reach Four Sigmatic customer service for subscription management, order support, returns, exchanges, product inquiries, refund requests, and shipping concerns.

Clients seeking customer support via email can use support@foursigmatic.com to submit a request to the agents at any time. For wholesale inquiries, consult the business customer service team at wholesale@foursigmatic.com. Another contact email for Four Sigmatic is accessibility@foursigmatic.com, which is designated for accessibility-related issues. Like the published phone numbers, the agents are estimated to respond to emails within 48 to 60 hours.

Four Sigmatic's headquarters, Four Sigma Foods, Inc., is in the United States at 1450 2nd St., Suite 210, Santa Monica, California 90401. The Four Sigmatic address is the company's main office, specialising in functional mushroom-based products, including coffees, elixirs, and supplements. Users with specific queries or complaints regarding products can arrive at this address for in-person assistance from the agents. When doing so, make an appointment in the relevant department beforehand. Those who find it inconvenient can send a letter or contact Four Sigmatic customer service online for a better experience.

To consult the business agents online, open the Four Sigmatic website in your browser and scroll down to the bottom of the page. Once there, click Contact Us under the Support section, and a form will appear. After you submit the request, Four Sigmatic customer service will review it and respond at the earliest. Users can also visit the Help Centre and click the live chat icon at the bottom right corner of the page for real-time assistance from experts. However, this feature might be limited based on team capacity. Those with general queries and concerns can benefit from the FAQs and other self-service resources on the Help Centre.

PissedConsumer Club

Contact Information

Four Sigmatic Website:

Four Sigmatic Help Center:

Corporate Office Address:

Four Sigma Foods, Inc.
1450 2nd St., Suite 210
Santa Monica, California 90401
United States

Other Info (opening hours):

Customer Support Hours:

Monday - Friday: 9:00am - 5:00pm (PST)


Store Hours:

Monday - Sunday: 11:00am - 6:00pm


Other Locations:

Showroom

102 Thompson St.

New York, NY 10012


14 Harwood Court, Ste 411

Scarsdale, NY 10583

More contact details

Summary of Four Sigmatic Customer Service Calls

42 TOTAL
CALLS
02:01 AVG CALL
DURATION
0% ISSUES
RESOLVED

Top Reasons of Customers Calls

Consumers Call the Most From

Why Do People Call Four Sigmatic?

Activation/ Cancellation Question:

  • “Cancel subscription to Original Mushroom Coffee and get money back”
  • “I cannot seem to cancel my subscription successfully”
  • “Cancel subscription. Didn't sign up for it”

Refund Question:

  • “Refund”

Return/ Replace Question:

  • “Return product”
  • “Order change”
  • “Return”

Request for Information Question:

  • “About order”
  • “Question about Ingredient”
  • “Product Question”

Shipping and Delivery Question:

  • “Where is my order?”
  • “Delay in shipping”
  • “Stop delivery”

Account Question:

  • “Stop my subscription”
  • “Just notified of two orders placed…. I have no subscriptions and no record of placing order”

Payments and Charges Question:

  • “Dispute an order shipped to me”

Product/ Service Question:

  • “Issues with purchases”
  • “Product Question”

Other Question:

  • “None of your business”
  • “Too much coffee”
  • “Follow up”

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