I get 07976113222 without screwing around with the audio. You could probably make it clearer loading into Audacity, decreasing high frequencies, add a little bass, and reduce playback rate.
Hi, this is Jamie calling career recruitment at (Kingco/Kenco)? Enterprises.
Giving a quick call regarding the application to ???????? (sounds like "leftway") technician vacancy.
If you wouldn't mind calling me back when free, I'm available 07976113222. Thanks, bye bye.
It would help in future if you provide some sort of context because it sounds like she is applying for a position at your company.