Taunton Penny Post - unboxed "No.9"

The Receiving House with the unboxed "No.9" handstamp should be Churchinford, however there is evidence that the Receiver there was not an official Post Office receiver until 1839 (when the previous unofficial receiver was trying to get the job as an official receiver).

This first entire has both the unboxed "No.8" and unboxed "No.9" handstamps.  The only reason I can think why this should happen is if the Receiver at Trull, which is up the road to Churchinford, held the "No.9" handstamp as well as the "No.8" one, because the Churchinford Receiver wasn't official.

My only other example of the "No.9" unboxed handstamp is from July 1839, so would be after an official Receiver was appointed.