It's the first time I hear about rushwallet,
https://rushwallet.com/ shows:
*** This site will no longer be available as of APRIL 15 2018 ***
Please transfer your funds to a different wallet through the Settings (top right gears icon) Export Keys option
From your old thread:
When i click on export I get a brainwallet and my private key, that was not enough for me to load it into my bitcoin wallet client.
If you have a private key, why isn't that enough?
One of the most recommended/used wallets is
Electrum. Can you import your private key here?
Out of curiosity and as a sanity check: do you really have 20 different wallets with 0.0007
BTC each?
Update: I've just tested it on site: I can create a wallet, export private keys, and indeed it gives me a Brain Wallet and a Private Key. You don't need the Brain Wallet, just import the private key into Electrum and you're done.