Contact us
Real people, one inbox, sensible hours. Here's who to write to depending on what you need — or use the form at /contact-us.
Last updated: 25 July 2026
1Support
Email contact@instant.nebkern.com and a human will answer. Write from the address on your account and tell us your workspace name — it saves a round trip.
- Business hours are Monday to Friday, 10:00–18:00 IST.
- We aim to reply within one working day, and faster on Pro and Business plans.
- For anything urgent and account-breaking — you cannot sign in, or messages have stopped sending — put "URGENT" in the subject line.
Before you write about a WhatsApp number that has stopped sending, check Settings → WhatsApp for the quality rating. If Meta has restricted the number, that is the cause, and our Acceptable Use Policy explains what usually leads to it.
2Billing and refunds
Invoices, payment failures, cancellations and refunds: contact@instant.nebkern.com. Include the invoice number or payment reference. Our Cancellation & Refund Policy sets out what is refundable and how long it takes.
You can cancel or change your plan yourself at any time in Settings → Billing — no need to email us first.
3Privacy and data requests
To access, correct, export or delete your personal data, email contact@instant.nebkern.com. We respond within 30 days and may need to verify your identity first. Full detail is in our Privacy Policy.
If you are a customer of a business that uses Instant and you want your data removed, contact that business — they control it. Tell us as well and we will pass the request on.
4Grievance Officer
As required under India’s Digital Personal Data Protection Act and IT Rules, our designated Grievance Officer is Sanjit Singh, reachable at contact@instant.nebkern.com.
- Grievances are acknowledged within 24 hours.
- They are resolved within 15 days of receipt.
- If you are not satisfied with the outcome, you may escalate to the Data Protection Board of India.
5Reporting spam or abuse
Received a message you did not ask for, sent through Instant? Email contact@instant.nebkern.com with the sending number and a screenshot if you have one. You do not need to be a customer, and we investigate every report.
6Registered office
Nebkern Technology, a sole proprietorship based at Siliguri, West Bengal, India. Email is the fastest way to reach us and the address every request below goes to: contact@instant.nebkern.com.
Post reaches us, but email is considerably faster. We do not take walk-in visits without an appointment.
