Your username must comprise completely of letters, digits or a hyphen ("-").

It must contain at least 2 characters, of which at least 1 must be a letter.

For example "Jo", "M5", or "[Zaphod]" are acceptable, while "88" or "[()%&^/-}" are not.

'Your password must contain at least 6 and no more than 48 characters.

It must also contain at least 1 uppercase letter and 1 digit.

For example "Mcjm69", "Zaphod1nHeart-of-Gold" or "Pete77" are acceptable, while "-Zaphod", "Zaphod Beelbebrox" (space present) or "%&^/-" are not.