The mistake was on your side (for both times) but regardless of that, they should have some rules regarding refunds (in which they don't have and that's a red flag).
What Houbi does not repay my deposit is a ridiculous thing. I am a participant in many exchanges houbi, when the deposit into the trading floor is not enough minimum then I send another amount of money to meet the minimum deposit required and they will credit me in my wallet.
I see Houbi does not respect the user
Do you have any way to help me solve this problem?