1902 256 241 appeared on my bill for $18, I did not make this call and no one could have used my phone. Vodafone wiped it for me, but had I not noticed it I would have been charged!
When I rang the number back, it could not be connected?!?!

Caller: I have this as a number i have called

I have this as a number i have called on my phone but don't recognised the number at all and am sure I did not make the call. Reverse lookup cannot identify/find the number:
1902 256 241