Replacement phone, they havnt took my old one

[daz316]

Hi all, I had a scratch on my k800i and wasnt very happy about it so i told o2 it kept freezing and they agreed to send me out a new one, it came today but they told me it would be there on thrusday or friday so i didnt have the old one ready to give back
so i know have two phones, whats the proceedure here, should i call them or wait till they call me??

[cracker]

keep your mouth shut and hope they dont realise

Be wary. The system will charge you for the price of a K800i if the second one isn't returned.

I'd suggest you send it back... and quickly before your bill is generated.