Question: If the benefits you receive from the primary country turn out to be lower than what you would have received from the secondary country where you also had rights the secondary country will pay a supplement equivalent to the difference between the two benefits
Please fix the punctuation.
Fixed: [If the benefits you receive from the "primary" country turn out to be lower than what you would have received from the "secondary" country where you also had rights, the secondary country will pay a supplement equivalent to the difference between the two benefits.]

Question: mandag den 19 April 2010
Please fix the punctuation.
Fixed: [mandag den 19. April 2010]

Question: Selfadhesive plates sheets film foil tape strip and other flat shapes of polyesters whether or not in rolls 20 cm wide unworked or merely surfaceworked or merely cut into squares or rectangles excl floor wall and ceiling coverings of heading 3918
Please fix the punctuation.
Fixed: [Self-adhesive plates, sheets, film, foil, tape, strip and other flat shapes, of polyesters, whether or not in rolls > 20 cm wide, unworked or merely surface-worked or merely cut into squares or rectangles (excl. floor, wall and ceiling coverings of heading 3918)]

Question: Finally you can now discover everything you need to know about your F00 file instantly
Please fix the punctuation.
Fixed:
[Finally, you can now discover everything you need to know about your F00 file... instantly!]