Having a problem here

I have been playing for a while on BK8. Depositing many times and also some withdrawals. I registered when I was abroad and I had access to a phone number to verify my account. I have no more access to that number and I asked online to change it, but BK8 is telling me that my new number is not from a country supported and so I can't withdraw my money. Meanwhile they are advertising here for European customers and I am from Europe. When verifying my identity I sent them my European ID and they had no problem with that.
I told them on telegram that I'm not interested on playing anymore. I just want a way to withdraw my money, which are exactly 340 usd. The support guy was like talking to a machine. No way he told. You have to go to Asia, take a new number, prove that your name is on it and then you can withdraw. Really frustrating experience.