gilipollas, it occurs to me that you are referring to the 2005 Danone Bio Activia ad "Visit with Mum" (Actimel is also made by Danone) which had a sort ot twin ad with a friend visiting a friend (rather than Mum visiting daughter) called Bloated of which there are 2 versions (both available at visit4info as well as the others).
I wish you luck finding the ID's of the two women because I tried for ages to ID the dolly friend BEING visited in Bloated and got nowhere with ad agency/company/the web/ sites like this etc and had given up hope when, quite by accident,
I saw her picture at a modelling/actress agency website. She turned out to be Joanne Heywood, an actress with a decent CV at IMDB. What I can tell you is that the actress who played the mother in "Visit with Mum" was in a Calgon ad a few months ago but....Calgon never replied when I contacted them....
What we really need at this site is a member who has a friend who could ID these people for us because the agencies/companies often invoke "confidentiality" and refuse to divulge info!
Good luck!