I've noticed a trend that banks and credit card companies were moving from VISA to MasterCard and the majority of my cards are now MC, whereas previously they were VISA.

This morning I've received an email from Amazon UK, saying that they will no longer accept any (UK issued) VISA credit cards as payment from Jan 2022 and a request to update payment methods accordingly.

I suppose that seems to tie in with the trend. (However, I wasn't sure whether the email was a scam - so logged.in separately to my Amazon account and the message is genuine.)

I'm struggling to I understand VISA's pricing strategy here? The major players are VISA and MC, so wouldn't you try and be competitive?