Royal Mail investigates data leak claims, no impact on operations / 9 disastrous rebrands, from WH Smith to Royal Mail / First pictures released of Royal Mail's new PS1.65 UK stamps including Loch Ness Monster / Royal Mail launches mythical creatures stamp collection / Royal Mail postman shares clever tip that people ''never knew was a thing' / Royal Mail to increase price of first-class stamp to PS1.70 / Royal Mail to increase price of stamps again in 'blow to consumers' / Royal Mail hikes stamp prices again with huge change on April 7 / Royal Mail hikes stamp prices again with huge change on April 1 / Did Royal Mail fail victims of groping postman?