Hi everyone,

I rarely post something, though I though it might be useful to share this information.
Very little information is available about the Gatwick Airport and that's a problem.

Basically both terminals have an Airport Concierge which sells SIM-cards, Oyster cards, does hotel bookings and so on.

Just be careful with this concierge... It's a pure scam and don't believe a word he says! I was partially scammed:
1) I've bought a Three SIM card for 10GBP. I was pretty sure what I wanted and didn't let him sell me the 15GBP pack. But still have payed 20GBP for SIM-card an 10GBP top-up.
What's the scam? Normally the Three sim cards are free at all major mobile retailers. When I asked why one should pay for the card, he said that this information I have is outdated and they only give out free sim cards if you order online. Stupidly I believed him. Though when I arrived in center London I saw that almost every shop actually gives away the Three Sim cards for free if you buy a top-up.

Pro-tip: after the top-up, you get 100MB of free data. So don't be stupid and don't put the data add-on directly, like I was.

2) This guy also sells Oyster cards. They are Visitor Oyster cards (so not refundable) and he asks 10GBP for the Oyster card.
When I mentioned him that it's a bit strange that it's so expensive, he said that it's the regular price as if you'd buy it at the train station.
If you arrive at Victoria, you can go to the Oyster office and get a refundable 5GBP Oyster card.

Pro-tip: buy a regular Soutern train ticket (not Gatwick Express) at the National Rail counter in the Southern Arrivals hall. It's cheaper, more comfortable, takes only 2 minutes longer AND you get a whole day for free to ride anywhere in London (zones 1-6).

It's not that big of a deal, but still why pay more for nothing. Just because you're misinformed.

The lady before me almost got scammed. She needed a hotel for the night and that guy was basically offering her to book the Holiday Inn Express nearby for 150GBP. While the best available rate is in fact 74.99GBP as I found out when I got into the hotel. The lady luckily didn't book it as she thought the price was to steep and she'd rather call a friend to stay the night in London on the couch.

So guys: be warned. This guy is overcharging people just brutally. And backing the overcharging with quite believable lies. The only thing I'd say it ok to buy there is the SIM card. Ok, you pay extra, but if you need a SIM card urgently, it might be a better option than to pay for super-expensive roaming.