币界网报道：Barclays will prohibit credit card purchases of cryptocurrencies starting June 27, citing extreme price volatility and lack of consumer protections as primary concerns. The UK bank warned crypto's exclusion from Financial Ombudsman Service coverage leaves cardholders vulnerable if transactions fail. This follows similar restrictions by JPMorgan Chase UK, TSB Bank and Lloyds Bank amid rising fraud complaints. Meanwhile, payment networks continue expanding crypto access - Mastercard recently partnered with Chainlink to enable direct onchain fiat-to-crypto conversions for cardholders. The divergent approaches highlight ongoing tensions between traditional finance's risk management and crypto's growth ambitions.