Many big banks have banned buying crypto using credit cards because of people who used their credit cards to buy BTC and other crypto and never paid their credit card bills.
Following the ban by JP Morgan Chase, Bank of America, Capital One and Lloyds bank BTC crashed and since BTC is a tether to other altcoins everything came crashing with it.
Terrible.
Oh, alright. That's a shame though. Crypto as a whole was doing pretty well before all of that. I just wish that other cryptocurrencies weren't so attached to BTC; the crypto market would be much stabler that way. Thanks for the explanation btw.