Thanks, oldmaggie, I was just starting my answer when yours appeared. Driving with excess alcohol carries a mandatory minimum twelve month disqualification. The only exception is if �Special Reasons� not to disqualify are found. This is extremely rare and if such reasons are found then neither points nor a ban is awarded. Being �in charge� carries no such mandatory ban and it must have been this with which your neighbour was convicted and ten points would be appropriate.
What now happens is that the DVLA will, when informed of the ten points, ask the court whether a �totting� ban was imposed as it should have been. If the court says it was not because they were unaware of the three points that were pending, your neighbour should be recalled to court to go through the totting ban process. The DVLA cannot award a ban, only a court can. Your neighbour will be given the opportunity to say whether �exceptional hardship� will ensue if a ban is imposed.
What Geezer says about points and/or a ban is not quite correct. Offences which carry a mandatory ban (such as driving with excess alcohol) have no �points� alternative. Those which carry a discretionary ban (and that is all other offences which carry an endorsement) can either be dealt with by way of points or a ban, not both. The effect is the same as Geezer says in his personal example (i.e. he got a ban and no points) but a driver is not actually awarded any points for an offence for which he is disqualified.