yitay:
Some interesting points l’Maaseh to keep in mind as you learn the sugya:
1) ??? ??????, does it really depend upon the number of stores or the volume of sales? Why?
4) Similarly, can I call my credit card company in the US from EY when it is Motzei Shabbos for me and still Shabbos in the States, on the assumption the person answering is not Jewish?