I'm trying to purchase some books, but I keep getting this message "There was a problem processing your payment. Please verify your payment information and try again." I know, that the information I put in, is correct

This is an issue for a support ticket. All anyone on the forums can do is tell you to reverify your payment method.

Thx. I also did make a ticket

apparently there is no point in making a ticket. The people that responded, are just as useless as the people that run this site

Go through the normal troubleshooting that you should any time a user-side error occurs. 

-Double check your information

-Clear your cache and cookies

-Try with a different browser

-Try with a different payment method

I have never had this issue on any other site. I have even purchased books, here before. I made a purchase later doing the day, on a different site. It's clearly this site that is pure trash. I checked my information so many times. They are correct. But this trash site, also makes it a pain, to actualy change the information. It seems to want to change it to something specific. I tried using Paypal. That didn't work either