You can do it all, or you can ask a salesperson. If you search for "Kunshan credit card salesperson" online, you will be able to find one who can come to your door to handle the matter.

You can apply for it with your ID card and work permit. Proof of income is better.

China Everbright Bank is also doing activities on Sina, which is not bad

mycd.sina.cn Just give the courier a copy of your ID card.