1 yes. extra funds are never a bad idea till you get a handle on things, lots of people have watched these extra coins grow too.
3 the btc price is good for a few hours while you pay
mostly minutes sometimes seconds somtimes hours. never worry its impossible to lose a btc payment, the block chain is a public record of every movement. →
Nooo problem, bitcoin payments can never be lost, thats the beauty of a blockchain. Your seller will see the order and payment status contact them or transaxe support. →
All sellers here are subject to escrow protection but ratings and time in business further legitimize them. →