Deep dangerous pothole

Junction 15 Eastbound on-slip to the M8 on Castle street, just before you enter the on-slip there is & has been for a number of months a dangerous pothole which is unavoidable to public traffic, when it rains the pothole fills up with water making it even more dangerous as your unable to see it until it's to late, I noticed when I was reporting this that someone else had done so back in November, they said southbound on slip at jc 15 however there is no S/B. It's just before the Eastbound on slip begins

Can Glasgow council please atleast temporarily fix this as it's the main route onto the motorway and is very dangerous.