Drivers door not opening
 

Hi All newbie and first post.
I have a Mazda 6 TS2 (04 plate) which has served me well but the drivers door is now stuck and can't get in from inside or outside yet all other doors work with no issues.
I've taken it to a garage who confirmed it's the drivers door central locking motor which I am now trying to source.
Does anyone know a part number or any idea what this exact part is as I have googled it but can't find exact item?
Thanks in advance of any help.
Regards
Mark