If I make cash withdrawals after the Base Rate changes, will this be charged at the new rate, just like new purchases?

Yes, cash withdrawals will be charged at your simple cash interest rate, which moves with the Bank of England Base Rate. If there's a Base Rate change, your cash rate will move up or down by the same amount. This will happen the day after your next monthly statement, and we'll let you know about any changes by adding a message to your statement.

Interest on cash withdrawals is charged on a daily basis, until you've repaid your cash balance in full. Remember - other types of transactions that we also treat as cash (such as buying currency or traveller's cheques, cash-like transactions, or gaming transactions) also form part of your cash balance.