I've some questions to guys who've got disabled account on Bittrex:

1. Did you use any proxy/VPN/anonymizers entering the account? Or maybe you often change your locations using IP adresses of different countries?
2. Did you have enhanced verification with enabled 2FA?
3. Have you used different browsers entering the account?
4. Do you have double account or may be somebody entered your account from the same IP? For example, using Wi-Fi.
5. Did you deposit or widthdraw large amount before getting disabled?

I'm sure that all blocking were processed automatically and this filter found suspicious activity on your account.

So, I have some advices:
1. Don't use any public network connections (Wi-Fi) or VPN/proxy that may be in Bittrex blacklist.
2. Try to enter account from the one device and browser.
3. Don't deposit crypto from suspended exchanges (like WEX - renamed BTC-e).
4. Enter your account regularly.
5. Don't make large and often deposits/widthdraws especially using anonymous crypto like DASH or Monero.

And all will be ok.