Parliament is a place governed by conventions. One of these is that MPs are not supposed to concern themselves with the affairs of a constituent of another MP. If an MP receives correspondence from another MP’s constituent, the MP receiving the letter is supposed to forward it to the correct MP
Luckily, I knew nothing of this when I wrote, and simply contacted every MP. I consider the rule to be a relic of the days when the public was not supposed to be concerned about national issues, but only their private ones. It seems to me that, if taken literally, one’s freedom to lobby disappears.