Hello, and thank you for choosing AcmeBrands! How can I be of assistance?
I've been trying to pay with my credit card but it keeps being rejected.  I know it's fine, because I called the bank.
Okay, I can definitely help you with that! Can I please have your name, so that I can pull up your account?
Alessandro Phoenix
Thank you, Alessandro.

Got it. We can try a few options here, or I can just try to make the purchase for you on my end, if you'd feel comfortable with having me do that?
I'd rather you give me the options, if you don't mind.
No worries. This is basic, but have you tried entering it again just to double-check?
I will try again.
Thank you. Please let me know if it works.
Nope doesn't work
Okay. One more option is to reset the system by logging out and back in. Can you please try that and let me know?
Sure hold on.
Thank you.
Still not working
Okay. Well, considering the bank said it's valid, we can surmise that it's not expired, so I will have to make the purchase on my end, if that's okay with you?
I guess so
Okay. I apologize for the inconvenience. What item were you trying to purchase?
Michael Kors Jeans for $94
Good news, I was able to purchase them on my end. You can expect them to be shipped out soon for you! Is there anything else I can help you with today?
That's all.  Thanks for your help.
You're welcome, have a great one!