Legal notice
Last updated: October 23, 2026
Oncethen is one of the online services operated by Syntrixo. This page identifies the operator as required by consumer-protection and e-commerce law.
- Service
- Oncethen (oncethen.com)
- Operator
- Racem Abdelkefi
- Trading name
- Syntrixo
- Legal form
- Sole trader (autonomo)
- Tax ID (NIF)
- Z2528200E
- Address
- Carrer del Sabateret 1, 1-7, 08003 Barcelona
- Country
- Spain
- Website
- syntrixo.net
- [email protected]
- Charges appear on your statement as
- SYNTRIXO
Support
Email [email protected]; we answer within two business days. You can cancel a subscription yourself at any time from Settings in the app.
Complaints
If you are not satisfied with how we handled a request, write to the address above and we will escalate it. Official complaint forms (hojas de reclamaciones) are available on request and can be filed with the consumer office of your region. Consumers may also turn to the consumer-protection body of the country where they live.