1)
What are the connotations of "Sheva al Chatoseichem"?
1.
Rashi and Targum Yonasan: It means (not seven punishments for each sin, 1 but) another seven punishments that correspond to the seven sins listed above, should you persist in transgressing them
2.
Ramban: Refer to 26:15:3:3*.
3.
Rashbam: The Pasuk simply means 'many punishments for your sins', 2 and the number seven is not meant literally.