On my checkout page it gives 4 options for payment

1 Busness check
2 Credit Card
3 Credit Card
4 Pay Pal

If the customer trys to use the 1st credit card option it will fail with "The credit card number must be at least 10 characters." regardless of what value are entered.

If they use the 2nd credit card option it works.

How do I get rid of the 1 option? Where do I find the code? All my modifications are in classic folders.

Here is a image of the screen I am talking about.

Thanks for your help.

Click image for larger version. 

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