On the sixth day, there was only a short message reminding the British visa, and there was no response. Is this a refusal?

The examination time of British visa has nothing to do with the pass rate of visa. Speeding up only means speeding up the inspection of the embassy. Whether the visa can finally pass depends mainly on how the visa officer examines your personal data.

In fact, as long as the information you provide is true and good in all aspects, the visa officer will still pass. I suggest you wait patiently and be prepared for the telephone survey. The visa officer may call you to verify the situation during the audit.