What are you talking about? Makes no diff what sort of broker you use, you either have certs in your sock drawer or you own in street name, simple as that.
If you have certs you deal with the t/a directly, if you own in street name, your broker deals with the t/a and you do absolutely nothing.
How come this crap comes up everytime some silly company mentions certs in regards to just about anything, splits, divvies whatever?