I have another good example. I bought an Adobe license few years ago, and as a business in EU, I had to bought in excluding VAT, and pay VAX tax here locally. I provided my valid EU-VAT, price dropped to net price in interface (let's say 100 EUR), in confirmation, and even in invoice I get. However, to my surprise, my credit card was charged with full gross price (123EUR), meaning I lost 23% of purchase - as I was obligated to pay VAT anyway second time, as there was 0 VAT tax on the invoice.
Well, such things happen, you may think. This should be childishly easy to fix with support, as clearly amount from the invoice and amount charged simply didn't match. However, after dozen attempts with support, dealing with various support level people from Adobe support from India, not knowing even what the VAT tax is, and without any interest on helping me out, I had to give up. I decided to use PayPal protection for buyers, as transaction was made through the PayPal. Tu my surprise, despite clear evidence, they rejected claim after consultation with Adobe, without providing any reason. So I decided to not deal with those thieves any more and called my bank to fill chargeback request. It was so clear, that they recognised the request the next day and returned the money.
Takeaways are: - Adobe is a shady corporation focused on robbing their customers, with other examples you can find online I cannot call that otherwise (among others, deceptive offers, blocking perpetual licenses, and as in my case simply stealing money from customers credit cards) - PayPal protections are completely useless, even with so clear cases - It's good to make transactions with shady companies with credit cards.