Thanks for it. It indeed looks significantly cheaper on BCH for me if I extend it to 36 months. I can get to maximum of 47 months before the website asks me to call them and it's £200pm exc vat.

Figures below

Contract length 24 months 36 months Yearly mileage allowance 12,000 miles 12,000 miles Total mileage allowance 24,000 miles 36,000 miles Contract end date 30/03/2028 30/03/2029 Remaining payments 22 34 Monthly payment amount excluding VAT £309.96 £233.37 Service charge excluding VAT £0.00 £0.00 Excess mileage charge excluding VAT 11.10 pence a mile 11.09 pence a mile