The airport website publishes Wi-Fi connection guidance. Consult the current instructions and verify the network with airport staff if you are unsure.
Before flying, save the confirmed meeting instructions and the transport contact on your device. That gives you a reference even if roaming or Wi-Fi does not connect immediately.
After arrival, use your existing reservation conversation to report that you are ready or need extra time. Do not share card details or passport photographs to arrange a basic pickup.