I booked a Budget car rental from them during my holiday in Croatia. I paid in full in advance with no extra added. The day after I returned to UK I received an invoice from Budget Croatia charging my credit card £ 350.48 with all adds on possible.
I submitted a request of help on my booking com account explaining the problem and enclosed all the needed documents.
Enquiry ref: 795247235.
On the form I filled out they looked genuinely helpful but truth is they just feed customers sweeties.
I received a reply of apologies and I was invited to contact Budget as I didn't provide evidence which I did.
Utterly disgusting liers money grabbers.