DRC VAT reimbursement does not have a negative sign

Dou to the new Domestic reverse charge for the construction industrie I should get back some of the VAT. If I put our figures in to the datadear excell sheet the amount to be returned shows correctly, but without a negative sign. It looks like if I send this to the Revenue I do have to pay VAt instead of getting back VAT. Does anybody have expierince with it?