I need a confident and rejection-proof publicist to contact the media in the UK

I'm looking for an experienced and confident publicist to send out a press release to relevant magazines and newspapers, then make follow-up calls.

The press release is already written. It is just a matter of compiling a list of suitable media to send the press release out to.
You will already ideally have an existing list of contacts, with sticky labels, that the press release can be sent to/emailed to. I would then anticipate about 1 to 2 days of follow-up calls.

This is to promote two young authors, aged 8 and 9, who started writing their own children's books as a bit of fun because they were being bullied at school. They initially sold the books at car boot sales and craft fairs, and have become very successful at it. Parents and teachers buy the books to inspire their children. Children buy them because they "get" the jokes.

The girls are very articulate and photogenic, and not at all shy!

This would suit someone who is fairly confident on the phone, used to speaking to journalists and newseditors and not at all shy!