is it the roundel youre talking about ?
if it is, there are two options, sometimes there are those small rubbers that sits on the tips so when you push it in it fits in with a bit of pressure. the other thing is that you bought cheap made ones.
i bought cheap ones on ebay and sent them right back because they dont fit right.
2010 M3 Jerez Black Metalic, Premium Package, Technology Package, M Double Clutch with driveLogic