Thanks for your replies. I have now heard from the firm as a result of my email to their genuine website. They've assured me that they did not send the email in question and that their IT team is investigating. I did wonder about the validity of an email which started 'the compliment of the season' !!!!
May I have a word of advice? This morning I had an email, ostensibly fom a company I dealt with a year ago. I was told that they had ' zipped and compressed confidential files' and that I should check on the given link. Of course I did not open the link but came out of email, went to the company's website and emailed them about my concerns. I await their reply. My question is - by not opening the link, have I done enough to protect my account or, In opening the email have I already done damage?