Chase Credit Cards offers 23 hour customer support for their credit cards, but it is usually an automated service. If you are looking to talk to an actual human being I would call your local bank branch.
If you are offering a private credit card ( ex: Sears, Conn's, Lerner's, etc.) to be used only at your place of business or chain, you might offer the customer a 10 percent discount on their current...
You can apply for a Chase credit card online, but it is probably a better idea to meet with an associate inside the bank. That way you can go over what your options are for the credit card you want...
You can apply for a 'Chase credit card' online at Chase's official website; it is completely free and it will be delivered to your door as soon as possible.