Clio 3 — Cannot learn replacement keys in the workshop

Hello together, for my Clio 3 year 2009, 75 HP, I had to have a new ignition lock (defect) including a new spare key, because a key was lost. Now I was for the 3 times in the workshop today and they still did not get to learn the replacement key. The last statement was that someone had to have done something on the control unit. But that can’t have happened to me. Then the first key should not work, right? e Tip what else can you do? A new control unit is definitely out of the question. Greeting Andreas