It is what those in the trade laughingly call "burglar bond"
That is, the bricks stick out so much that they can be climbed!
Yes the brickwork doesn't look great, but I've seen much worse!
And what do you expect them to do about it, knock it all down and re build it?
This is Bellway and there is no chance of that.
I know of at least two Bellway buyers who have their homes built using weak mix mortar.
So weak it crumbles and Bellway did nothing.
See this post on soft mortar joints Is the house being sold leasehold?
If the answer is yes that's another more serious concern for you.
