Hi, if you sent ETH, you can easily check your ATL purchase using MyEtherWallet:
1. Click Add Custom Token.
2. Add this address to the Contract Address field:
0x78B7FADA55A64dD895D8c8c35779DD8b67fA8a05
3. Type ATL in the Token Symbol field and the number 18 in Decimals. Click Save.
Link:
https://www.myetherwallet.com/#view-wallet-info