As the industry manages high turnover, more companies are expressing dissatisfaction. Among firms that switch to a new bank, the previous bank's lack of knowledge about their business is an increasingly common reason, according to a recent survey.

The past two weeks have seen a flurry of deals wherein Truist, Capital One and others pitch their brand alongside professional teams and their stadiums.

The banks that own the peer-to-peer payment network are reportedly considering a retail launch that could fend off rival payment methods — or simply cannibalize the sizable revenue issuers get from credit and debit cards.