Why is the change of ownership for my car delayed?

If the car you bought has a lease agreement, it can take up to fourteen working days for the lease block to disappear from the car register. As soon as the leasing company has booked your payment, you will be registered as the owner, and the registration certificate will be sent to your registered address.

And no problem. You have the purchase agreement as proof that the car is yours, and your insurance is valid as usual during this time.