Where did you buy electroneum? I don't see it listed anywhere yet. As for bitshares, once you have an account set up you shouldn't have any problem buying bts. You can buy it with your altcoins on shapeshift, or blocktrades and have it sent to your wallet. Options also exist to deposit altcoins into the bts wallet and buy bts directly from the bts decentralized exchange, aka the Bitshares DEX.
You also could buy directly from a Bts holder like me, (except I'm not selling) for fiat. You would send me $$$, and I would send you bts.
Am I making sense?