Retrieve/order and learn radio keys

Hello together Our new family growth is on the farm and I was very surprised at the handover on Saturday that I was only given a normal and a radio key – that’s probably normal and you have to order a second key directly with…good, not known and is just like that – Now I thought I’d buy one (e.g. use) at the free market..let the inliner blank do the local key service and then drive with the new whole E Well, far from it – the employee just on the phone tells me that it wouldn’t work and you can only learn these keys as newly ordered ones. A new one would be around about 350€ cost *lol* I can’t believe it…. Well, that’s what I’m asking in the open round – is it really like that? I can’t and won’t believe it, because it smells a little like “We just want to sell our new goods and earn a lot of money!” m a so-called “Code 2” key (stands also on the keybart) – Whatever that means. Then the second question – Can you learn the FFB even without Fiat (with previous models this went on times -> ignition with second key and then with the “forgotten” FFB the vehicle once up and shut down – then the probably was registered again) Thank you in advance and I am grateful for any tips