VAT Credit showing in Journal but not included showing in VAT return

Hi Guys,

im using sage 50 cloud accounts, im setting up car lease invoice payment, there is a 50% Block on VAt.

I entered invoice and payment (same date) using T11 (the standard tax code we use for sales and purchases) which was the 100% VAT.

I then created a journal to credit the 50% adjustment, image below.

I calculated the vat before and after the journal and the vat value never reduced.

Our vat is calculated upon payment,.

What im i doing wrongly?