No response on home loan rate review

I submitted applications to have my home loan interest rate reviewed as it is custom to do every 6 months, first in February of this year and then at the end of November. In February the response was very quick, in my opinion too quick, as I received an answer stating that my interest rate will remain the same within 10 minutes. That almost makes it seem like my application wasn't even considered. The application I sent on the 26th of November still remains to be answered. I received a read receipt 4 days later, followed by an automated email 4 hours later stating that my issue has been resolved. Other than that, no further response.