Hi, my application is very similar to yours @lynn1978 applied online 23rd May, sent sons old passport to Peterborough and in processing since 3rd June. We are also due to fly on the 18th July and my anxiety is through the roof! I messaged twice on Twitter and second time they put a note of my date of travel on my application but said they couldn’t guarantee anything.
Please let us know if you have any luck!