Apple Password.

[dicmor]

My e mail address is *******.******@btinternet.com. I am continually being asked to enter password four Dickmorris.com. This does NOT exist. How can I cancel this from my machine

[Buenchico]

It's probably your browser which will be holding that information but you've not told us which browser you're using. If it's Safari, this might help:
https://support.apple.com/en-gb/guide/safari/passwords-sfri40599/mac
(See also the 'Autofill' link at the foot of that page)

[Buenchico]

This might also be relevant but, since you've not told us what type of device you're using (Apple Mac? iPhone? iPad? something else?) it's hard to be certain:
https://www.macworld.co.uk/how-to/iphone/remove-apple-id-iphone-3623338/