The author could have disputed the charges. That doesn't lead to card cancellation. It leads to you getting your money back. The author could also have CC'

The author could have disputed the charges. That doesn't lead to card cancellation. It leads to you getting your money back. The author could also have CC'd the the various consumer protection services of Massachusetts. He's either clueless about how banking works -- you can dispute bad deals, which is one of its best selling points relative to crypto -- or he actually thought $5K was an acceptable price to see James Taylor.