I have recently just started in options and I use Commsec as my broker.
I understand the basics about options, but I don't understand how settlement works with CommSec.
Reading their information, they said that with a CDIA payment should be made T+1 of the premium.
I wrote a fairly small covered call option only worth about $150. However, about 2 days after the trade, I get about $430 deposited in my CDIA account from Commsec, and I have done no other trades in that period.
The options were not exercised, and my collateral statement shows (being covered) the full underlying shares as the collateral.
I am confused, is this an accounting error?