services of vodaphone

hi
am pissed up with the services of vodaphone care. i registered my complaint on 10 sep. 2009 about caller tune which was activated on my phone which i didnt subscribed for. and till now 26 sep i had not got my refund back. i got calls from care that i will get my money back in 2 days ……but till now no refund…am really fed up with services……tell me what i should do…??????