Withdrawal unfairly declined

I am very disappointed in bronzecasino for declining my withdrawal. I know there is a mistake in mixing up my play with a bonus that was added into my balance. You had added €10 (which I did not play with at all) into my balance and after some days later I deposit €113. I started playing games with my own money, all the games I played was required to use real money. I won €850 plus the €10 bonus therefore in my balance was €860. I spoke to one of your agents if I can withdraw, she clearly said yes but I had to send proof of ID (I sent passport, driving licence, bank statement). When I was going to make the withdrawal a pop window came up saying that there is a bonus of €10 in there needs to be removed before making a withdrawal. I clicked yes for the €10 bonus to be removed. The bonus was removed, and it did allow me to make the withdrawal of €850 otherwise it would not have allowed me if my winnings were from bonus. Then couple of days later I see my withdrawal declined for irregular gaming reason using Courrier Sweeper (and returned €113 back into my casino balance). I know this game can played with real money and not bonus. The other games I played were played by real money too. I did not use bonus money for any game, I was using my own money while playing. I did not enter the bonus money at all therefore I did not enter the wagering rule or gaming rule. I believe you are taking away my own winning for a simple mistake on your side. The €10 bonus was removed before making a withdrawal. It did allow me to make the withdrawal of €850 otherwise it would not have allowed me if my winnings were from bonus. I did not play irregular gaming because I did not go from bonus to real money or the other way around. I was clearly using my own money for all the games including courier sweeper, it would have not allowed me to play it anyway. I am 100% sure I did not use the bonus and did not enter contract with the bonus that you added. I only made the withdrawal of €850 because it allowed me, and I asked to see if I can and was told to do so, also because I used my own money all along. This is completely different situation; the bonus was removed before withdrawal and games were not played with the bonus at all. The free bonus they added was not part of my play. All winnings were from my own money.