my phone will not reset because it fell in the toilet

Send it back to whom?

DId you ever try putting it in rice forabout a week? Then vacuuming some water out too? Or hair dryer technique works too.

When an iPhone get submerged in water the last thing you want to do is try to turn it on. The water could cause the electronics to short out and permanently ruin the iPhone. Most people that drop their iPhone in water try to fully dry out the phone by fist trying to remove any water by airing it out and pouring it out. Then they place it in a bag with rice and let it remain there for at least three days. Then, and only then would you want to try and turn the iPhone on. Many times it will then work, but unfortunately also frequently it still will not work properly and need service or replaced.