Fubuki Co dec 2010

In the official answer written by ACCA while calculating financing side effect it wrote like this as follows

The base case net present value is calculated as approximately $708,000. This is positive but marginal.
The following financing side effects apply
$’000 Issue costs 4/96 x $14,488 =(604)
Tax Shield Annual tax relief = (14,488 x 80% x 0·055 x 25%) + (14,488 x 20% x 0·075 x 25%) = 159·4 + 54·3 = 213·7 213·7 x 3·588= 766
Subsidy benefit 14,488 x 80% x 0·02 x 75% x 3·588= 624 Total benefit of financing side effects 786

According to me it should be
$’000 Issue costs 4/96 x $14,488 =(604)
tax relief on issue cost 604×0.25=151
Tax Shield Annual tax relief = (14,488 +151) x 80% x 0·055 x 25%)=166×3.588=596
interest saved=Subsidy benefit 15092 x 80% x 0·02 x x 3·588= 865
tax relief lost due to cheap finance ( 15092×80%x.02=241) 241×0.25×3.588=(216)
total benefit of financing side benefit is 792

I want to know why answer written in the official ACCA answer does not take the account of tax relief on issue cost?, in kaplan book taught us to there will be tax relief on issue cost of debt and it also said never forget to add issue cost in the debt value