QUESTION: Fix punctuation: You switched off your iPhone and turned it on in order to view the video file again
ANS: You switched off your iPhone and turned it on in order to view the video file again.

QUESTION: Fix punctuation: A bathroom accessory set includes everything from towel rail to toothbrush holders and is an easy way to update the look and function of your bathroom Our selection is always classy and always affordable
ANS: A bathroom accessory set includes everything from towel rail to toothbrush holders and is an easy way to update the look and function of your bathroom! Our selection is always classy and always affordable!

QUESTION: Fix punctuation: became friends with S T Yau whom I credit with generously establishing my finally and definitively as a mathematician
ANS: ... became friends with S T Yau , whom I credit with generously establishing my finally and definitively as a mathematician.

QUESTION: Fix punctuation: Money saving bundle from NextUpcom including TextAloud and WeatherAloud Both programs support the optional ATT Natural Voices
ANS:
Money saving bundle from NextUp.com including TextAloud and WeatherAloud. Both programs support the optional ATT Natural Voices.