[NSFW] No Vat calculation on Surcharges

In dk , we cant charge surcharges for the private clients.
Only b2b clients.
In our bambora payment module settings we can se it to only charge from b2b creditcards.
“our setting”

So when we get orders from b2b clients , the bambora automatically after check out puts on a surcharge example 1,45% on the order, without VAT on it.
“on its own order line called :”surcharge”
“sometimes” it does infact put vat on that line pr auto”
But mostly no vat is added, only the amount from the payment system is noted.
The payment system dosent seem to add vat to the charge sometimes.
So how can we charge the client for this vat. alot of manual work goes into this, both in shop and in accounting.

Is this woocommerce that dont understand to place vat on it, or where is it the bambora that have a problem