If this is an ideal PaymentMethod, this hash contains details about the iDEAL payment method.
ideal
The customer’s bank, if provided. Can be one of abn_amro, asn_bank, bunq, handelsbanken, ing, knab, moneyou, rabobank, regiobank, sns_bank, triodos_bank, or van_lanschot.
abn_amro
asn_bank
bunq
handelsbanken
ing
knab
moneyou
rabobank
regiobank
sns_bank
triodos_bank
van_lanschot
The Bank Identifier Code of the customer’s bank, if the bank was provided.