That's really sad. I'm so sorry--I had no idea that Argentina was cracking down on e-cigs. I sure hope it doesn't happen here.
Having said said that. you should really consider rebuilding. It's not that complicated. You don't even need an RBA--many vapers here rebuild their Kanger and Aspire coils with either kanthal or nichrome wire, not just to save money but because they prefer the flavor and performance of their own coils. If have a tank and a few old coils, all you need is some wire, organic (preferable Japanese) cotton, an Ohms reader and you're home free.
Have you seen Leekaylee's tutorial? It's quite simple:
http://www.e-cigarette-forum.com/fo...l-coil-single-vertical-coil.html#post14430057
And here's Rip Tripper's tutorial for Aspire coils:
There are many more tutorials here on ECF and on YouTube. People have rebuilt every coil known to man--single, dual, horizontal, vertical... I wouldn't pay 5 bucks for one coil.... That's a ripoff.
Good luck!