I went to Side in March 2006 then to Marmaris 7 weeks later in May.
I was that flustered on arriving at the airport I paid the £10 again.
It wasnt until a few days after arriving that, I realised what I had done.
I tried to explain on departing that I shouldnt have paid and could I be refunded?
That put a smile on their faces but their answer was NO.