Thanks for all the replies, and so soon. However, I now feel a complete twerp as I gave you all duff info! I actually purchased the Bitcoins from 'Coinify', but my wallet is with 'Blockchain.com', and it is them whom I am having problems logging on to, as they do not send a password reminder, and are instead asking me for my '12 word Secret Private Key Recovery Phrase'!!! Well, if I can't remember my password, I'm definitely not remembering that!
They give me one other option; to reset my '2FA device'. No idea what that does, but have sent a request anyway, and await a response and see what happens. They say it could take up to 2 weeks. What a palava!
![Tongue](https://bitcointalk.org/Smileys/default/tongue.gif)
Thanks again for your help!