Costs budgeting and indemnity basis costs
Denton v White  4 Costs LR 752. If you obtain an order for costs on the indemnity basis, as receiving party, that is a “good reason’’ to depart from the costs budget.
“If the offending party ultimately loses, then it’s conduct may be good reason to order it to pay indemnity costs. Such an order would free the winning party from the operation of CPR rule 3.18 in relation to its costs budget “Lord Dyson MR paragraph 43.