Birth cert, digital image not available but what does

[Wilma55]

Occasional copy B mean?
Any ideas?

Occasional Copy means that a copy of the register entry was submitted to GRO outside of the usual quarterly returns process. This almost always will be due to some sort of correction, or change, to the register entry.

In such cases there is no "original copy" to order, because the register entry itself has been changed, and any certificate issued will always reflect that change (but it should be clear what the change has been). Just order as normal.

This is quite different to a re-registration where there will be more than one entry relating to the same birth, sometimes months or years apart ( which therefore have completely different references), and for which you can order certificates from either entry and they will be different.
www.rootschat.com/forum/index.php?topic=862475.9

Maybe the B was because it was the second correction. Judging by the website below, corrections could be submitted many years later
www.mcmenemy.org/all/index.php/our-families/14-my-family/law

Thank you @LozengeShaped I will look at the links. Its a bit of a mystery as the surname is not what has always been known as " mothers maiden name".

How long are they taking to arrive at the moment? Still not received it though they have taken the money.

I ordered a lot of birth certificates a couple of years ago as part of a project. It varies, but 2/3 weeks was the average I think.