this has 2 meanings. One is "I'm not good at this" and the second is "I don't like this" Clever Japanese!
(KUNKUN)
苦 (suffer) + 手 (hand)
= 苦手 (this is not my thing!)
苦情
( くじょう )
a grievance or complaint
苦 (suffer) + 情 (emotion)
= 苦情 (a grievance or complaint )