[4] Bamnjo also played in the Hong Kong Senior Challenge Shield Final, in which he scored a disallowed goal in a 3–0 win against Happy Valley AA.

Bamnjo was injured during warm-up in the Hong Kong League Cup Final,[6] that Kitchee beat Happy Valley AA 2–1 to win the trophy two consecutive seasons.

[7] On 21 July 2007, it was reported that Bamnjo tried to engineer a move to Indonesia side Persikota Tangerang without Kitchee's permission and did not return to training after the summer break.

On 29 November 2008, Bamnjo scored two goals to knock his former club Kitchee out of the Hong Kong Senior Challenge Shield quarter-final with a 3–2 win.

[17] On 5 January 2014, Bamnjo was one of the seven players and coaching staff arrested by the Hong Kong Independent Commission Against Corruption (ICAC) for allegations with match-fixing.

[24] On 12 June 2014, Bamnjo won the court case against Happy Valley AA for unpaid wages and was awarded 57,500 Hong Kong dollars in settlement.