There's nothing complicated about getting the Netherlands VAT back, can't speak for the Oxford type rating but CAE gave us the info to do it, from there it was a matter of filling in some online forms, getting the Dutch VAT number and sending off the CAE invoice to them. 6 months later I got the full VAT amount on the CAE invoice, my accomodation invoices and some of my petrol receipts back in full to my bank account. I didn't even use my accountant to do it. Its a fair chunk of money that I'd rather not see the Dutch government have, so its well worth doing.