Creaking/Rattling Noise from Nearside front

[JoshRees]

So I bought I Mk8 Fiesta ST Line back at the end of September. 3 weeks after I got it, I had to take it back as there was an issue with seals and water was leaking in. It was in for repair for 2 and half months. Having received the car back I have become aware of a rattling/creaking noise originating from the front nearside corner of the car. I have found it impossible to determine the cause or exact location of this noise as it cannot be recreated whilst the vehicle is stationary. It only seems to occur whilst the vehicle is slowing down, not necessarily whilst braking, just slowing down, however is more prominent when braking. Has anyone else had any experience of this on the new Fiesta? It has only 4000 miles.