Our standard policy, when it comes to size exchanges or part replacements, requires you to mail back the damaged or poorly-fitting appliance(s) you have, and once we receive it, we would mail out the the desired replacement. Being abroad, that makes this process expensive and time consuming, which is generally why our exchange policy is for US customers only.
With that said, we can offer exceptions on a case-by-case basis. You can keep the device you have now, and simply pay the shipping fees associated with us mailing you the replacement you would need. This would actually cost you the same, but cut the waiting time in half, and save you from making a trip to the post office.