After searching for a long time (8 months) finally got one.
Realised my friend worked for HSBC credit card sales and she got me an expat signature card.
Let me know if you want an introduction. She's really helpful and knows exact documentation required:
- Kitas/ID card - Passport - Recent wage slip or letter from company stating earnings and tax number - Copy of any other credit card if you have (I used my UK one) - Self statement letter saying where you live and work.