Hello. I'd like to inform you that according what is stated in Bulgarian official FB page, World Cup broadcasting rights belong to one of Bulgarian TV and not to the Federation. That means that the Federation won't stream in their official youTube channel.
For Bulgaria broadcasting will be provided both by NOVA TV and its sport channel - NOVA Sport. I'm sharing links for online streaming that work perfectly in Bulgaria and probably not outside of the country:
NOVA TV https://nova.bg/live
NOVA Sport http://seirsanduk.online/hd-nova....QfTQzD8
(currently there's problem with their stream)
This website streams online Bg televisions abroad and they have NOVA TV: https://neterra.tv/cart.
But you need registration and to pay for this service - currently they have a kind of promotion: only 5 eurocents for 9-trial period. The restriction is that only NOVA TV is available which includes the following parts of the competition:13 April
17:00 - group AA, 3 hoops+2 pairs of clubs14 April
16:00 - FINALS individuals and groups