Lost earphones after replacing

I love these headphones so much and use them daily. So much so that when I lost the case on my bike commute home I brought a whole new set again even though I still had headphones. I seem to be having a bad string of luck and have now lost my new headphones and case. And I can't see that you guys sell the case separately which is tough because I still have a pair of headphones and can't afford to replace a whole new set again. Is there any way you can help me :(