Safex - Slow Development & High Migration Fee

first time in early 2017, I buy safex from bittrex exchange and after delisting from bittrex , I transfer these coins into official safex wallet with paid high transaction fee in safex coin to bittrex. now I have only around 3k safex coin. today I deposit 0.00200000 btc ( 20$) to safex wallet for migration porpose. Safex official says that only 1.5- 2$ btc cost or migration and after that you withdraw your BTC from safex wallet. But after migration process , i have only 0.00001347 btc remaining in my new safex wallet V0.0.7. literally 20$ cost for 16$ SFT migration. It’s pathetic step by Safex. Why you charged high Btc fee ? Unfortunate for small investor.