You have a commercial house, which cannot be used as a decisive condition for applying for a card. If this commercial house has a mortgage, it can only prove that you have the ability to repay. In fact, banks will not use this as the basis for the size of the quota. Even if you have millions of properties, the bank won't give you much credit. To put it bluntly, the most important thing is deposit. If you have 0.2 million/200 thousand cash in the bank, you can get a card with a limit of 50 thousand, or you can provide a lot of money in your name recently, that's fine.
Without the above, among the six major banks, the maximum quota can only be 6,000, while Shang Hui Bank and Bank of Communications can achieve around 1 1,000.