It's four weeks but you are not legally obliged to do so. They have no right under any Statutory Legislation to enforce a fine for this.
I have no proof it was posted, but the Interpretation Act basically states that the onus is on them to prove I didn't send it. Their guidelines for posting the V5 to them also makes no requirement to send it via any recorded means.
I 'm based over 200 miles away from my home address during the week and because of how busy I am with work I didn't give it a second thought that I hadn't had a confirmation. I didn't receive a court Simons until over 6 months after I sold the car.
I can't see how any of this can legally be enforceable by a court. My only worry is that as its a Magistrates court the case will more than likely be heard by lay magistrates who don't know anything about Statute Legislation and might just side with the DVLA as they couldn't possibly be wrong
You may well be right. I'm not saying this is the case with you but just think how many people try to weasel their way out of legitimate fines, how many oops I forgot and other bullshit excuses these magistrates have heard, who do you think they will side with?
It could end up worse going to court, I'd only do it if you are really confident