It will be really bad if you can't say timeline as it is very simple thing and don't prolong, As the feedback was given Respond within 1 day by sending the same to Technical team and ask on how much time it take (like already told, Your Team needs to give ability to remove /collections and /products customly by editing coding or some other thing which don't take more than a day or two to do that). I hope you @Nick ask the Team and respond back with teamline as it's already an year and no longer Good to delay.