If I read the original post, ye olde number one, correctly...
For the fine and the request to send licence off to DVLA since being stopped by police officer last August... How long should I expect to wait ? Is there a deadline before nul and void? I was given a ticket at the roadside so it wasn't just a finger waggle.
...he was given a ticket at the roadside, thus requiring payment etc at allotted place (up here, its at local Sherrif Clerk/Council Office) within 28 days.
Presuming OP didn't pay.
If that's the case then a full fat CPS/PF copy complaint should thereafter be issued which, if paid within time constraints, give same penalty as original ticket.
If not responded then will be escalated to Court appearance and warrant within time constraints.
That all said, given nothing has been forthcoming since original stop and ticket issue then, assuming all correct details supplied to police at the time, then edumacated guess, from experience, is that police copy of tickets not lodged for process and OP should buy a lottery ticket soonest.
And I claim my 25% commission of any winnings if correct.....