Contact

Talk to a person.

No ticket queue and no chatbot. Email reaches us directly, and we answer during the hours below.

Registered nameWynstack
Trading as3DCalci
Registered address11-L, St. Thomas Road, AR Line, Palayamkottai, Tirunelveli, Tamil Nadu, 627002, India
GSTINNot registered
Support hoursMonday to Saturday, 10:00 – 19:00 IST

Using the product

Something not adding up, a printer missing from the catalog, a tariff that doesn't match your bill — tell us what you expected and what you got.

hello@wynstack.com

Billing & refunds

Include the Razorpay payment id from your receipt and the Google account you subscribed with. See the refunds policy for what we cover.

Acknowledged within 2 working days

Privacy & data

To get a copy of your data or have your account deleted, email us from the address on the account. Details in the privacy policy.

Answered within 30 days

Before you email about a plan

Most billing questions are answered on the pricing page — payment methods, what happens at the product limit, and how cancellation works.