Teachable problem purchasing

Hi, I tried to purchase the C++ course for $49. But my credit union uses Velera for anti fraud and I discovered they have blocked Teachable entirely. This is likely because other course providers have had a lot of chargebacks, or perhaps just another layer of AI slop.

I’ve purchased a number of courses from Mosh in the past.

Is there an alternative means of purchasing the course that goes around teachable, or that can use electronic check such as bank account number, and routing number, or a discount code for 66% off so I can use my personal card and not use it as a business expense?