Ford Fiesta Zetec. 1.4 Petrol. 2004 model. - High pitched whistle when moving forward - otter valley

Hello, I posted this on the motoring discussion just now but its a technical query . Sorry.

I have just had an MOT and basic service with parts fitted at a Ford Franchise in Nottingham and this included new front right hand spring and associated fittings.

Also new Cam Belt and Drive Belt kits.

I am getting a high pitched whistle when I move the car forward to put it away in my garage. I did not notice this at the service depot when I left earlier today.

The whistle is not there when you start the car but only when you start to move forward.

I have driven the car out on the road this afternoon and was not aware of the noise on the road. It is only when I start the car up and move it forward.

Any thoughts please? I plan to take it back to Fords tomorrow morning.

Thanks.

Brian.