The shortlist for the award contained 9 names and one can only imagine that HMRC did not expect to win. According to this report in the Telegraph, no one was present to receive the award from Host Sanjeev Bhaskar.
Apparently the organisers went ahead with the obligatory 'winners' photo though, with the host, someone from the sponsoring company and a gap in the middle.
"You can insert the winner in there later," Sanjeev suggested helpfully.
He had another suggestion for what could plug the gap – unprintable in a family newspaper – and unless it belonged to an elephant, not large enough to fill the space.