QUES: This product was added to our catalog on Friday 09 January 2009

correct the punctuation.

CORRECTED: This product was added to our catalog on Friday 09 January, 2009.

QUES: He resigned from his chair in 1810

correct the punctuation.

CORRECTED: He resigned from his chair in 1810.

QUES: This product is amazing because it works so much faster plus its quality is amazing as long as you order it at this pharmacy

correct the punctuation.

CORRECTED:
This product is amazing because it works so much faster, plus its quality is amazing (as long as you order it at this pharmacy).