Blended or unblended costs
There are two general fee structures that payment providers can choose to require for card transactions:
Blended (or bundled) rates: Generally, this is simple pricing with fewer individual rates. There may even be a single rate so regardless of the type of card the customer uses (e.g. debit or credit card), card brand (e.g. Visa, Mastercard, Amex), your industry sector etc., you pay the same rate per transaction.
Unblended (or unbundled) rates: Generally, this is more complicated pricing with many more individual rates. Sometimes, you see this described as ‘interchange+’ or ‘interchange++’ pricing.
Interchange+ pricing consists of two elements: the cost of interchange and the markup your bank or payment provider adds for providing card payment acceptance services.
Interchange++ pricing consists of three elements: the cost of interchange, the markup your bank or payment provider adds for providing card payment acceptance services, and the cost of the card scheme fee.
The charges you pay, as well as the transparency and granularity over the breakdown of these charges, depend on your pricing plan and contract with your payment provider.