I have Bitfenix Prodigy M case, white (bought around 2 year ago). I'm having trouble cleaning it. I tried using just water, the smudges won't go. So I tried those baby bottle detergent, it did help. But now the case material (front cover and the top/ bottom handles) turns from soft-touch to sticky touch. Its literally sticky. Any idea how to make the material normal again?

Thank you. Do I have to pay for the replacement parts? I think I bought the casing from IdealTech Pandan Indah (though I need to find the receipt to confirm that).