Towy:
1) as Juro said, it applies only to orders up to 41.666,67 € (without VAT) - so be careful what you add on top of default preset in Configurator. Prices in Configurator are withotu VAT but "after savings". Make sure you check the "before savings" price (final price that you actually pay) in bottom left corner.
2) Incentives are only for residents of Slovak republic. If you already have "permanent residency" (not sure what term is being used in EN for this), you are eligible for the incentive.
3) Dealership in SK is no longer an requirement. This was the issue with previous round of incentives (2016-2018), so you read some old article - as you said.
4) Also, the website where you need to register first in order to get the incentive, has currently technical difficulties. It was stopped early yesterday, and be available at 12.00 today.
5) After registration, you will recieve an email from goverment agency SIEA, which will help you to fill all the documents. After that, goverment will judge you request and if there is no problem, you will sign the contract with goverment. After that, you will have 12 months to actually buy the car and ask for a refund. It will be 1-payment payback of 8.000 €.