smartlabs.support@avabenet.com
We aim to reply within 2 business days.
There's no ticket system, no chatbot and no phone queue. You write, someone reads it, someone answers.
If your files didn't arrive
This is the most common reason people write, and it's almost always fixable in one reply.
Before you email: check your spam or promotions folder, and search your inbox for Switch-Off. If it's not there, email us from the address you used at checkout and we'll resend straight away. If you think you mistyped your email at checkout, tell us the address you meant — we can find the order.
If you want a refund
Email us within 30 days with the word refund in the subject line. You don't need to explain and you don't need an order number. The full policy is on the Refund Policy page.
If it's about your data
To see, correct, export or delete the data we hold about you, write from the address you used at checkout and say what you want. The detail of your rights and how we handle requests is on the Privacy Policy page.
What helps us answer faster
- Write from the email address you used at checkout — it's how we find your order
- Say what you're trying to do, not just what went wrong
- If something looks broken, tell us the device and browser you're using
None of this is required. A one-line email is fine and we'll ask if we need more.
A note on timing
We're a small operation in Brazil, which means replies land on Brazilian business hours. If you write late on a Friday, you'll most likely hear back on Monday. If your files haven't arrived, that wait is on us and the refund window doesn't run against you while you're waiting for an answer.
Who you're writing to
Smart LABS
CNPJ 53.243.609/0001-58
Avenida Portugal, 1148, Suite 409
Órion Business & Health Complex
Goiânia, Goiás 74150-340, Brazil
Something we should know about
If you've found a factual error in the book, a broken link, or anything on these pages that reads as misleading, please tell us. We'd rather fix it than have it stand.