The numbers could be recorded, but don't need to reference me, which they do.
No, you have a voters number, which is what they are matching it against. Highly unlikley that the same number will be alongside your name on the previous register or the next register produced.
That number is used only in the event of ballot papers not matching the number of people recorded as voting. No-one sees the back of the ballot paper(where the number is) at the count. Its also why you are only supposed to use the pencil provided. There is no means of saying who you voted for, unless there is a problem because a second ballot paper with your number appears in the same box.
"Again why do they need my name against the ballot paper number?"
Partly to protect themselves, proof of the number of ballot papers handed out by them. Also as a tally of the total number of papers handed out. Partly to protect you should anyone else try to "vote for you". Personation is the offence, they are trying to stop here.
"Yes I have voted many times. No one has ever asked to see my ballot paper, but they don't need to see it, they can look up my number later, and see what I voted.
Still not convinced there is a good reason for it to happen."
I can look up the register after and all it will show is those who actually made the effort to vote. It will not disguingish between those who have voted by proxy, postal or at the ballot box. Let alone who they voted for. All ballot papers are destroyed after the count is complete.
From the Handbook for Polling Station Staff
"• en
sure the secrecy and security of the ballot
•
act impartially at all times
• account and be responsible for all the ballot papers, paperwork and ballot boxes
•
ask the prescribed questions of voters when necessary, including when asked to do so by
candidates or agents or before the issue of a tendered ballot paper
•
ensure that the proper procedure for voting is followed, ensuring that the corresponding
number list is marked correctly
•
ensure that when either they or their Poll Clerk issues a ballot paper, it bears the official
mark and is issued correctly to eligible electors"