Welcome to Flyertalk dxtrey and welcome to the BA forum. It's good to see you here and I hope we will see more of you.

Now usually I'm the one on this site to say "don't worry about mangled names", BA aren't that fussy so long as it's clear that right person is travelling. The API information needs to be reasonably correct but BA isn't that bothered about middle names and titles getting mashed around. I also advocate not using middle names, they aren't needed and cause more trouble than they are worth, ditto matronymics for those of Spanish/Catalan origin. Strangely we rarely hear back from those who have raised this issue here in the past.

However this case is rather different since the name seems particularly mangled. I would get eBookers to resolve this, they are paid to be your agent here. I suspect you would still be OK to fly since it's seems to be just 4 characters out, but it's sufficiently different that it would stick out. If you're going Hand Baggage Only on a domestic or Irish sector then it's probably not worth the effort but I guess it's more than that.