As many have said, masses of attempted scams out there. My email software shows me the actual sender, so it's easy to see that it is NOT McAfee wanting more money to renew their security (which I don't have), it's not NatWest wanting to ensure their records re my card (which I don't have) are correct, and that it is not really FedEx wanting an extra £2-99p to deliver my parcel (etc etc).
You SHOULD be able to see who really has sent a potentially dodgy email, by getting to 'properties' (systems vary, but possibly put the cursor on that email in your inbox and do a 'right-click'). Bear in mind that the email address that has sent your spoof email may know nothing about it, if their PC or gadget has been hacked!
If you find a dodgy one, DO PLEASE forward it to [email protected] (then delete it). AND -- if you get a spoof text on your phone, PLEASE FORWARD it to 7726.
Most banks and courier firms also have their own fraud unit, you can Google the name ("NatWest phishing" etc) copy them in along with the Action Fraud email.
Masses of FREE online advice exists, re all sorts of appliances and household repairs. Quite legit, and very often with a handy U-Tube film and commentary.
Now, must dash, I've an email from a very nice Nigerian lady, recently widowed, really sad, she just needs £75 to pay a bribe to a chap at her hubby's bank (he was President) that will release the password to an account holding 47 trillion dollars paid as a slush fund by American firms re oil and gas reserves. Ours to share once we 'grease the wheels'.