Amazon has reached a historic $2.5bn (£1.9bn) settlement with a US business watchdog over allegations it tricked customers into signing up for Prime membership.The Federal Trade Commission (FTC) accused the online giant of tricking customers into the membership scheme - which includes perks like faster delivery - and then making it difficult to cancel. The Seattle-based company will pay$1bn (£750m) in civil penalties, and $1.5bn (£1.1bn) paid back to customers unintentionally enrolled in Prime or deterred ...