I have no problems with this except when things happen that are beyond our control.
We have a persistent problem here with some of our mail going to a street with the same initial letter as ours and the same stre number. We similarly get some of their mail. No amount of complaining and ranting seems to have any effect.
We had the case of our Rego sticker going astray and it was some time before a new one was issued. We did take the precaution of keeping and carrying all payment documents in the car.
We have had renewal notice turn up after the due rego date, even though it was posted a good month beforehand.
Somethings are beyond our control>