Because you called it?
From here;-
http://www.phonepayplus.org.uk/numberchecker/DisplayServiceDetails.aspThis is what we know about the number you entered (09058018586).
We do not have any specific information about this number at present. However we can tell you the following.
* This is classified as a Special Services, open ended time dependent charge or fixed fee up to £1.50 for BT customers number.
* It is provided by Noodle Telecom Limited.
* And costs £1.50pm [in pence or pounds where 'pm' means 'per minute' and 'pc' means 'per call'].