the transactions has expired finally ( more than 24 hours, nearly 5 days ), but it has charged me some Txn Fees ( as it appears on etherscan.io ) even the domain registration has NOT been done. is that normal ??
so the next time when i try to register a domain i have to bet my eth and pray ?
If your second transaction at step 3 takes more then two minutes , someone else can intercept your transaction and front run you. The two min interval at step 2 is protection against it. I suggest that your second transaction sets relative high gas to stop it from pending long time by checking the latest gas price from gasnow.org.