A standard checkout
Payment on a standard order is card, PayPal, Apple Pay or Google Pay. You can check out without an account. The payment page lists those methods.
The goods total and the delivery charge are separate. UK delivery is free when the goods are over £50 ex VAT. The payment method does not change the 3pm dispatch cutoff.
A trade account
TradePro adds BACS as well as card and PayPal. It is for trade businesses. It starts at 5% off and goes up to 10% when spend is over £1,000 a month.
A personal checkout does not become a trade account because the order is large. The TradePro page is the application.