Not received my refund

I logged a call to request my invoice and now when I go to log another call via the First Car website to ask why I havent had my refund of all the money I paid and how much I can expect, I NEVER get a reply.<br> <br> This is A LOT of money that First Car are holding from me and believe me I can imagine it is a nice whack of interest they must generate on all their clients funds they hold!<br> <br> I am a loyalty client of First Car but I swear I wont book a car through them again. Hertz is MUCH better.