Hi Suzie,
It is pretty easy to get to Andorra la Vella from Pas de la Casa. There is a local bus service that runs every half an hour, it costs €5.50 each way and you buy your ticket on the bus (Journey time is approx 40 mins) . If you go to the Resort tab on this site and click on "shopping" you will find further info, including the times the buses start and finish and where they pick you up and drop you off. The other option is a taxi, however this can work out quite expensive, around €35 each way, possibly more if the taxi has to come from another resort.
Hope this helps
Emma
It is pretty easy to get to Andorra la Vella from Pas de la Casa. There is a local bus service that runs every half an hour, it costs €5.50 each way and you buy your ticket on the bus (Journey time is approx 40 mins) . If you go to the Resort tab on this site and click on "shopping" you will find further info, including the times the buses start and finish and where they pick you up and drop you off. The other option is a taxi, however this can work out quite expensive, around €35 each way, possibly more if the taxi has to come from another resort.
Hope this helps
Emma