I wouldn't assume to know how traumatic this experience has been for you and your family. I do hope your application now gets the attention it warrants as Accra office has been sitting on it for far too long.
Your application having passed the normal estimated processing period entitles you to raising an exception. Use their regular email and the webform. Make it known to them how long this application has been on for and why you need it addressed as urgent.
My advice as always been to send requested documents via paper mail(post)(yes, i know it is not cheap, but it is hard to deny receipt, since it is trackable), or send more copies via webform if there is no acknowledgement of your webform submissions after a couple of weeks. Send again and again. Till they acknowledge.
Best of luck mate.
Do get them those documents asap. Seems once an application misses its scheduled overview date, it starts to gather dust in some underground alcove beneath those IRCC offices.