Caller: Dell Computers

Automated dialler initially that connected me to an account manager. Following up on a purchase I made 2 years ago and seeing if there was more stuff that they could sell me.
Legitimate call, from a company that had my details, however sales based nuisance. Asked if they could send me an email with contact details, to an address they already had on file.

This number called me a few times in very quick succession. However, when I picked up the call, there was no one on the other side and they hung up.

This caller may be a scam.

Caller: Dell

Legitimate number from Dell, but can be a nuisance constantly calling to try and sell products, particularly if you're a business.