I've been stuck on level 1344 since the day of release. I have played this level over 200 times, though only got down to 80 bubbles 4 times. Makers claim you can do every level without extras but I find that hard to believe. I only got 18 bubbles and have blown a heap of my bonuses.
That level is challenging, it's true, but I can guarantee you that with some patience you can do it Here's a tutorial video to give you some inspiration. Good luck!