£5.50 for purchase less than or equal to £300, £1 for purchase over £300.
£8.50 for purchase less than or equal to £275, £1 for purchase over £275.
£8.50 for purchase less than or equal to £300, £1 for purchase over £300.
£15.00 for purchase less than or equal to £300, £1 for purchase over £300.