bad reception

It is Saturday AM when I enjoy watching tv, but Cox reception is terrible.  I can only receive about half the channels that are not troubled with interrupted picture and voice.  I have reset the box multiple times and have had maintenance people to my house.  Why is there constant problems with my reception?  I pay a lot of money to watch shows when I am available.  I am consider ing switching servers if this continues.  The service man says everything is fine and that problems in my area are prevalent.  Why?  Please fix these problems or I will be forced to cancel my Cox Cable.

sincerely,