Customer support
Most questions are about logging in or finding a lesson — usually solved in a single message. Reach us through any official channel below and we'll reply within 24 business hours. Support is handled personally by Mateus Martins Cardoso de Sá, the seller named on every page of this site.
Write to mateusmartinschaves@gmail.com for any request — access help, billing questions, refunds or cancellations.
Message or call +55 44 99762-5987. After your purchase we also reach out here to confirm your access is working.
Right after purchase you receive a confirmation email with your access link. We also send a WhatsApp message.
Open the link and log in using the exact email address you entered at checkout.
If you made a typo or can't find the email, message us — we'll correct the address and get you in.
Payments are processed by our payment provider. On your card or bank statement the charge appears under our billing descriptor MMARTINSC (shown at checkout). If you see a charge you don't recognise, please contact us before opening a dispute — we can identify the purchase and resolve it quickly, including issuing a refund where eligible.
For subscription products, the recurring price and billing interval are displayed at checkout before you confirm, and a reminder is included in your confirmation email. You can cancel at any time — see the Refund & Cancellation Policy.
Use the same email you entered at checkout, and check spam/promotions for the confirmation message. Still stuck? Email mateusmartinschaves@gmail.com and we'll get you in.
See the Refund & Cancellation Policy. In short: a full refund within 7 days, and cancellation of any subscription at any time with no fee.
MmartinsC is a trade name, not a company. Your purchase is with Mateus Martins Cardoso de Sá, an individual sole trader in Terra Boa, Paraná, Brazil. Full identity and contact details are on the seller information page.
No. Our programs are educational, for general wellness and beauty. They don't replace advice from a qualified health professional.