What's with the price increase?

I’m absolutely aghast at the announced price increase (again!).

I’ve been paying 10.99 EUR for the family plan, using only 2 members as Deezer doesn’t have other options. You are now increasing it to 19.99 EUR?!?! That’s almost double the price for absolutely no change in features. 

Let’s pretend you are not already significantly more expensive than the other popular streaming service which offers plans for 2 people, can you explain how you justify charging this much in countries like Croatia?