charged for being asked if I want to leave a message when call not answered

[sparkyA1]

I noticed that when I called a number and it was not answered I was asked if I wanted to leave a message on Voice Mail. I was then charged a fee for being asked this even tough I did not leave a message and had closed the call after it was not answered. Is this correct? How much do they charged for asking me if I want to leave a message? Thanks. 

[jonsie]

PAYG or contract? 

Have you looked in My O2? This isn't customer service so we have no access to tour account. 

You need to call them. 

http://www.o2.co.uk/contactus

[Cleoriff]

Out of interest @sparkyA1 were you calling abroad or a UK based number?

[MI5]

The recorded message you hear means the call has been connected so you will be charges a minimum of 1 minute call charges.

[sparkyA1]

No I was calling a UK  O2 number. I was not connected to the number - the number did not reply and then the recorded message came in from O2 asking if I wanted to leave a message. Then noticed I had been charged I think it was 30p.

[sparkyA1]

No I had definitely not been connected. The call was timed out and message said the person cannot reply or words to that effect. I was then charged 30p after being asked if I wanted to leave a message. I tried calling again a few mins later and the same thing happened and I was charged another 30p!

[MI5 · Accepted solution]

The call was connected or else it would have just cut out.
It connected to the recorded announcement hence the min 1 minute charges you have been billed for.