The evidence strongly supports the core elements of the statement, even though it doesn't confirm every specific detail. Multiple relevant sources corroborate that a refund event took place involving a project named 'Hourglass'. One highly relevant source provides a first-hand account of a successful withdrawal and directly links to 'hourglass.com/stable', confirming the connection between 'Hourglass' and the 'Stable Plan'. Other crypto-focused accounts also mention a refund policy for Hourglass.While the provided summaries do not explicitly state that the process is 'completed', that the cryptocurrency was 'USDC', or that the refunds were for 'erroneous' transactions, the collective evidence makes the statement highly probable. The existence of a successful user withdrawal and public discussion of a refund policy provides strong validation for the event itself. The unconfirmed details (completion, USDC, erroneous transactions) are plausible specifics of such an event, and there is no conflicting evidence to suggest they are false. The high relevance of the corroborating sources outweighs their lower authority scores, leading to a high confidence assessment.