Welcome to Rohan. It has been this way at Open Beta. It has been this way for 8 years. It will be this way until they say good night and shut the doors for good.
SES are permanent. ASES are 30-day. always has been, always will be. There is no scam there. Spirit stones and patterns are 30 day. dungeon mounts (if you can get them) are 30 day. The longest running hunter kits are 30 day. Temporary costumes are 30 day.
EM SES and ASES (dropped in game) have a low (10-25%) chance of success for a reason. Because they are freely available as mob drops. The IM ones - the "Radiant" SES/ASES - have 100% success rate. Perhaps instead of spending more for ingame ses from EM or farmed, you simply buy the IM ones rather than complain about games of chance.
Now rather than rant about how you were cheated, you simply asked questions in here before you spent your rohan points on stuff you were uncertain about. We would have helped you understand the commercial nature of the game.
To your post about permanent costumes further along:
There is no such thing as permanent stones for sockets. All of them have a max of 30 days. Costumes use patterns that you get from the IM.
Bottom Line: This is not TERA or Aion or any other game except Rohan. It's rules of play and business model will different than other games. You need to come to an accommodation with them just like you have to in any other game. In the case of timed items like ASES, spirit stones and PATTERNS, PlayWith has to make their moneh somehow. How else do you expect them to keep this game running if you are not buying items like these on a month-to-month basis?
At the end of the day there is no such thing as a truly free to play online game. Anybody that says different is feeding you lies. However if you are truly interested in playing for almost free, you can farm and sell stuff in the EM to make ecash to use in buying IM goods.