It’s understandable to feel anxious about this situation, but the good news is that minor errors like this can often be corrected without significant issues. The mistake in your middle initial ("R" instead of "O") is a small discrepancy, but it’s important to address it proactively. When you mail the required document (CENOMAR) and your passport, include a short explanation letter. In the letter, clearly state the error you made on the CEAC form, mention your correct middle initial, and provide a copy of a supporting document (such as a birth certificate or government-issued ID) that shows your full, accurate name. Apologize for the mistake and politely request that they update their records. Additionally, check the embassy’s website or contact their support team to confirm if there is a specific process for correcting errors. Ensure you mail everything the embassy requested as soon as possible, including the original CENOMAR, your passport, the explanation letter, and any supporting documents. While the correction may cause a slight delay in processing, minor discrepancies like this typically do not result in visa denial if addressed promptly. Monitor the status of your application on CEAC after mailing your documents, and if you don’t receive an update within a reasonable timeframe, follow up with the embassy directly. Being upfront about the mistake and providing the correct information should help resolve the issue smoothly.