I've had 3 DDs with a bubble palate and the first was much like yours - jaundice, ventouse birth, reflux and she was mainly bottle fed for the first 8 weeks (majority was formula with some EBM) before she was weaned back to breast feeding (and she bf until she self weaned at 3.6y/o 
).
From personal experience, bubble palates can make deep latching difficult so that can make it difficult for baby to get good quantities of milk at first. That's the bad news, the good news is they DO grow out of the difficulites as their mouth grows they find it easier to get a better latch.
You may have noticed a 'clicking' noise whilst feeding - that is normal for a bubble palated baby and not a sign of a poor latch unless the clicking is accompanied by pain or chafing/soreness. The clicking is also grown out of, thankfully.
DD3 had the clicking the worst and the HV and the BFing group I'm part of could not work out why as the seal was unbroken, I was in no pain and there was no nipple shaping after a feed. We finally worked out it was bubble palate and have since retroactively diagnosed my older DDs with it (we are blaming my DH as he has it too!). She grew out of it at about 6ish months IIRC.
Have you considered biological nuturing? You can do this along side bottle feeding if you like as well as using BN to get a baby to latch, it can also be used to support and encourage baby back to bfing without pressure (helps baby to feel comfortable being near mum's breast without stress).
I found the 'flipple' helpful to get a deeper latch This is also helpful when trying to latch baby on and has lots of information on how to latch on deeply.
I'm really sorry you feel pushed into bottlefeeding when you want to breastfeed - there are ways to get back to bfing (either exclusively or part depending on what works for you and baby) but there is NO shame in drawing a line under your experiences and carrying on with bottlefeeding.
Just so you are aware though - it is quite easy for a 'sucky' baby (as reflux babies often are) to down large bottles even after satiety has kicked in as the way bottles works is : Baby sucks, milk flows into mouth causing a vacuum, milk flows to fill the vacuum and into baby's mouth, baby swallows/sucks causing vacuum, milk flows.....and so on until bottle is empty or baby pushes bottle out of mouth. So don't be down hearted that baby took 6oz in one go - it doesn't necessarily mean that your baby was starving.
As an aside, what meds is baby taking for reflux? DD1 was on domperidone and I think it made her hungrier as she still fed as much (anything up to 1 3/4 hours of bfeeding during day time or feeds lasting 3+ hours overnight) as before she was on med but she did vomit less and was in less pain so it worked out in the end.
Medication and positional techniques can all help to lessen the pain of reflux for baby and the volume of vomit so if baby is not on medication and is really struggling to cope with pain/problems with weight gain then ask your Dr for something to help (reflux is NOT always just a laundry problem).