Meal allowance / parking/ tax

If you get a meal allowance of say £15 per day,you then have a night out ,park at services ,£24.50 ( £23 parking,£1.50 food voucher ) ,company say if they pay you the full £24.50 ( parking+ meal voucher)then they have too tax you on the £15 regular meal allowance .
Is that correct ,I’m assuming from what there saying you can’t have 2 tax free meal allowances in one day ( £15 + £1.50 ) :question: ta

dozy:
If you get a meal allowance of say £15 per day,you then have a night out ,park at services ,£24.50 ( £23 parking,£1.50 food voucher ) ,company say if they pay you the full £24.50 ( parking+ meal voucher)then they have too tax you on the £15 regular meal allowance .
Is that correct ,I’m assuming from what there saying you can’t have 2 tax free meal allowances in one day ( £15 + £1.50 ) :question: ta

If they’ve already paid you a £15 meal allowance then how or why are you going to claim an additional £1.50? You’ve been paid the meal allowance. I’ve no idea what they “have” to tax you on, but it makes no sense to me if someone is paid an allowance for them to try and claim it again.