Hello again
I completely forgot to get back to you with the outcome of my query with LivingDNA,which is,as expected,putting the blame
vaguely on the quality of my samples:
......
Thank you for contacting Living DNA.
You are correct, you most certainly are one of our unique customers having two lots of results.
The reason why your results are slightly different can be because of the quality of the samples tha y
ou provided us, it is possible that the samples were not completely identical with regards to quality. The first sample may be a better quality than the second or the second could be a better quality than the first. Our Lab and algorithm will have no idea that the two samples belonged to the same person and so depending on the quality of the sample you will find that the results can be different.It is important to note that all family ancestry results are estimates, based on the comparing your DNA to our range of reference samples. Many populations are themselves formed from the mixture of other populations. Our algorithm will attempt to match you directly to a population/region, where we have it in our reference database. If we do not have it/we have a low sample size for a region, or if there is further population structure within that population/region, then we are likely to assign some ancestry to the populations that contributed to that region.Your Living DNA membership includes free ongoing upgrades in the ancestry platform. In the future, if, we are able to provide finer detail within our existing regions, or we can offer additional features in the ancestry platform, your online results will be updated automatically (not applicable to printed results). So you may find that in the future both results will one day be identical or even more similar than they are now. I hope this helps and if you have further questions please contact me.A lot of
possibles,
mays and
coulds 
I'll let you know if "one day" happens.
Barbara