You're definitely not the first nor the last one to have this issue. Actually, the current discussion on our thread is about unfair T&C as years of experience in the industry have shown that operators will do anything to void winnings won by bonus funds. It is what it is, though and it's a lesson learned. Everyone should always read the T&C and even maybe double-check with customer care before claiming and using a bonus to protect their winnings if they get a lucky streak.