I must by stupid.
The Visa example I supplied is the following and all the lines were processed with the regex in one go
20/06/2017 1606/JARDIN DU CAP 06 SAINT LAURENT -33,80 EUR
19/06/2017 1606/LA POSTE BOUTIQU 75 PARIS CEDEX 15 -14,50 EUR
19/06/2017 1606/ESSFLOREALYG820 83 FREJUS -61,02 EUR
the structure of the Amex is as follows (I give only three "extended" lines and I keep the "internet" formatting ) and this does not work, but in the first instance I never specify that the text has to be splitted and it works
14 juin ITUNES.COM/BILL LUXEMBURG
Enregistrée le : 14 juin
INTERNET TRANSACTION
21,99 EUR
16 juin APPLE ONLINE EURO HOLLYHILL
Enregistrée le : 17 juin
89,95 EUR
17 juin AMAZON EU SARL GUYANCOURT
Enregistrée le : 18 juin
16,80 EUR