The People's Operator has a US based customer service team. They are positioned as a carrier who is socially conscious and they will donate 10% of your monthly bill to a charity of your choice. You don't need to do anything, TPO will take care of it all for you.
Seashells contain calcium carbonate. The calcium carbonate reacts with the acid in the vinegar and causes carbon dioxide bubbles to form. Even though the acid in vinegar is weak it can, over a period of time, dissolve shells.
Seashells can be found as one coiled piece, or they can be made up of two parts. All the shells you see dotting the beach were made by the creature who lives (or lived) inside. The mollusk is a marine snail and it's life becomes a work of art in the form of it's shell.