Rings and hangs up when you pick up the phone. Sounds like a call centre with lots of calls in the background. I rang back and the automated message keeps saying to say the name of the person you want to speak to

Virgin Money calling about getting a credit card.

Keep receiving repeated missed calls during business hours, always with no voicemail left.

Call centre (somewhere) . I've received multiple calls from this lot over the past few months. I hang up every time. Bloody nuisance though.

Called - I didn't say Hello, was blank on the other end. Hung up.

Thanks - I just blocked the number so they don't keep calling me.

Called a number of times and I suspect that they also call from a private number.

Called then simply hang up when answered. Happened twice on separate days

Virgin Money trying to sell you a credit card

I called back number (02) 8316 8011 reached IVR for a company called Virgin Money.

Multiple calls with no voicemail left. Called back and its some company calling on behalf of Virgin Money.