I have had the same problem booking a Gatwick parking slot using PayPal viz (middlesbrough mdb uk) I note two answers to this...one PayPal will disagree with.. 1) check the time of your transaction and that of the PayPal warning and you will see they are different by a couple of minutes (ie probably the PayPal process of checking validity. 2. STOP using PayPay as a payment facility and load your credit card onto your phone / computer. Ruduced transactions may spur the techies (if available) to sort the problem. This is a new problem to me so what has changed in PayPals process???
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