Odd, just as I answered they hung up!

Call centre - asking for donations

This number keeps ringing but never leaves a message

this number aswell as a few different ones all starting with 0288 keep ringing my mobile :X  i googled it and found this website, then i googled 0288 and found out its an std code for some place in india!! bloody spammers.

I received a call from this number today. The man called himself Mark. He was very rude. Never answer it when this number rings!

Continually rings but I never answer. They never leave a message

On Do-Not-Call Register.  Call received at 11.12am 3rd December.  They hung up before the call could be answered.

When I called this number back, a recording said that I had been called by a well known charity. Curious!