I have it with SCB and received notification of corporate action which I don't quite understand. Default option is to let it lapse, or you can exetcise or oversubscribe. I think it is buying (?) new issues at $2.35 a share based on 1-for-1 entitlement. My question is for this, if you let it lapse, you tend to lose out? So better to just exercise it? But what about oversubscribe? Any advice?