If you use your Bank of America-, JP Morgan Chase- or Citigroup-issued credit card to buy cryptocurrency, then you'll have to find an alternative ASAP. According to Bloomberg, the banks have banned crypto purchase using their cards due to the virtual coins' volatile nature.
I can't say I agree censoring what people use their buying power for!
Source: https://www.engadget.com/2018/02/03/banks-ban-credit-crypto-purchases/