Support centre

Most things here can be fixed in under a minute. Start with your issue below — and if none of it fits, a human reads every message.

What do you need help with?
Run tokens & the Sandbox

What a token buys, why a session ended, small versus heavy apps.

Read the answers
PRO access

What PRO includes, how it differs from tokens, content still showing as locked.

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Payments & refunds

Charged but nothing credited, refund requests, where to find your receipts.

Read the answers
Your account

Purchases, token balance, learning progress and a direct line to us.

Open your profile
Can't sign in

Reset your password yourself — you will get an email with a link.

Reset password
Report a bug

Something broken, a wrong answer in a lesson, or code that will not compile.

Tell us
Paid, but nothing arrived

This is the most common issue, and it is usually resolved without us.

1
Open your profile page and look at Payments.
2
A checkout that started but never confirmed appears there as Awaiting, with a reference like order_….
3
Check your bank or card statement. If there is no charge, nothing was taken — just buy again.
4
If there is a charge, send us that reference and we will match it against the gateway and credit you.
Send us the reference
A lesson looks wrong

Every runnable snippet on this site is compiled before it ships, but mistakes still get through. If something does not build, contradicts itself, or teaches something that is no longer true, we want to know — tell us the lesson name and what you expected. Corrections go out quickly and you are credited if you would like to be.

Report a content issue
Contact us
A human reads every message. We reply to the email address you write from.
Open the contact form Email us directly
Reply time
Within one working day, Mon–Fri IST
Signed in?
Use Get help on your profile — your message arrives with your account attached, which is faster.
Before you write

Including these gets your issue solved on the first reply instead of the third:

  • The order reference, for anything about a payment
  • The lesson or project name, for content issues
  • What you expected, and what happened instead
  • Your browser, if something looks broken on screen