Seeing SYNTRIXO on your statement?

That charge may be from Oncethen, the history-learning service at oncethen.com operated by Syntrixo. It means a subscription was bought using your email address. The plans are:

• 1 Month: $11.07 every month
• 3 Months: $19.98 every 3 months
• 1 Year: $49.98 every year

Customers in the euro area pay the same figures in euro. Each plan renews automatically at the same price until it is cancelled. We send a receipt by email for every charge.

Want to stop the charges?

Sign in with your email and choose Settings, then Cancel subscription, or email [email protected] and we will cancel it for you. Cancelling stops all future renewals; you keep access until the end of the period you paid for.

Don't recognise the charge?

Someone may have used your card or email by mistake. Email [email protected] with the date and amount and we will find the account, stop it and refund the charge if it was not authorised.

Want a refund?

See the Refund Policy.