At the moment SSNAP does not expect this to affect teams audit compliance. The audit compliance for data entry largely looks at medians. For those specific items that measure the median number of days, a score of 100 is obtained if median time is less than 7 days. From what we understand, the check for the national data opt out service may take up to one hour to get a processed file back after you send it, providing they were able to process the file successfully.
If it does frequently take longer than 7 days, this is something that your team can highlight to SSNAP@kcl.ac.uk