Slight Issue with replacing my IEMs through MeElectronics

[Mr Artistic]

I just recently e-mailed Meelectronics stating that I need my M9s replaced because they are defective (the sound is really low with bass almost none existant). But, the problem is after I arranged a replacement order to be sent to me, I couldn't find the defective ones and I have a strong feeling that my girlfriend threw them away. So, here's my predicament: 
Should I let them send the replacements without giving them the defective ones in return or should I just cancel it altogether and take the loss?

 

[soundstige]

Cancel the replacement and have your girlfriend buy you a new pair after throwing out something you own.

 

[Mr Artistic]

I just canceled the replacement shipment, it would have been against my principles to go through with it anyways. My girl is a full-time college student with little income so I can't really ask that from her. Thanks for your input Soundstige and I will be searching for a new IEM.
 
FYI, I didn't even mean to post this on the Headphone forum Lol. IEMs forever!!!!!