Wasn't allowing the image in the first post for some reason.
If this is actually how the bonus advertisement was shown on the deposit page, then they have no choice but to Honor it, it is completely unprofessional and a scam if they don't.If this bonus was for first time depositors, then they should have completely stated that in the displayed ad like - for first time depositors only, or better still, completely remove the ad for those or users that are not depositing for the first time.
They will have to honor the bonus since they didn't state whether it was for first time depositors or not.
I believe the answer is on the information tab which contains the full details of this bonus which intentionally structured that way so that lazy users on reading terms will become a victim of impulse deposit due to the bonus offered.
I believe this is what the support of Bc.game holding on that’s why they deny the bonus claim of the OP shown on the screenshot of their conversation. But I agree on everyone here that the way this bonus title will surely make you think that it’s generic deposit bonus.