https://www.millwallfc.co.uk/news/2025/september/17/club-statement--guavapay/
Millwall Football Club has been informed that Guavapay - the parent company of its front-of-shirt partner MyGuava - has suspended all customer transactions and services across their consumer platform with immediate effect.
While this is plainly a serious matter, the club understands that the suspension is due to unresolved issues with the Financial Conduct Authority (FCA). The club has received no indication of when it may be resolved, however, it has been assured that client funds remain fully safeguarded.
The following guidance has been provided by GuavaPay:
Account holders will no longer be able to load and accept new funds into the MyGuava app or create additional cards.
Existing balances remain safe and protected in accordance with GuavaPay safeguarding obligations.
Existing customers can still view their account and access transaction history via the MyGuava App.
Existing funds can still be withdrawn, transferred, spent until the balance is zero.
Business accounts PoS and e-commerce completely down as well.
They would also loosen rules that require merchants that accept one of a network’s credit cards to accept all of them.
Possibly only US but could come here as well.
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No thanks 
I’d say, good luck to any merchants that actually try to refuse higher-tier cards in the US. The vast majority of credit cards and even some debit cards there are high-tier. In fact, across the banks I use there, every single one of them only issues their balance transfer cards as regular Visa or MasterCard, so refusing Visa Signature/Infinite or World (Elite) MasterCard is going to lead to a lot of customer frustration.
First time seeing them advertised tonight during the England game:
They are focused on businesses only but wonder if anyone has used them for anything!
UK small business account from £250 per month not exactly cheap (while HSBC Kinetic for SME is free…)