Welcome bonus denied

I read the bonus terms before making my first deposit and attempted to claim the welcome bonus package of 100% deposit bonus, 200 free spins, and a crab claw bonus. The terms state a €10 euro min deposit is needed to activate the bonus, I deposited $25aud which is €15 euro and did not receive the bonus. Before playing anything, I contacted live chat, stated my problem, spoke to Marianna who claimed the supervisor said it is a $30 min AUD deposit needed. I kindly argued to fact of the bonus terms clearly printed on the pro page and in the terms and conditions clearly stating only €10 is needed, provided screenshots of those conditions and provided the promo email stating the advertised bonus also. She claims a supervisor who would not provide their name or speak with me has decided I need to deposit more to obtain the bonus. She then hang up on me when I questioned this and demanded to speak with the said supervisor. I got back onto live chat and spoke with Masa. She was lovely but also asked the supervisor what to do (she originally agreed with me but could not override the supervisors decision) again I was told to deposit more and when I asked to speak with, or obtain the name of the person making the decision, was told I was not allowed to know their name or speak with them. This is very cowardly of a person calling the shots to not identify themselves so a dispute can be resolved. An hour had passed and I still had not played any money but I will be now shortly after writing this. I thoroughly read the bonus terms, and the terms and conditions to ensure I was correct, and no where did it say I needed $30 min AUD. I believe I am owed $25 bonus cash and 200 free spins to be used at my leisure. Something extra for my time and effort would also be appreciated.I have screenshots of advertised email promos, and website promo page terms etc available upon request. I also have live chat transcripts also