If the charge is agreed by an AGM there is very little you can do about it.
Few sinking funds would be big enough to pay 60k out of and stil have enough money to plan for painting of exterior and common areas, carpeting of common areas etc.
In our development there will probably be a painting levy some year in the future as even though we have a healthy sinking fund, painting costs would wipe it out so whether by levy or an increase in the management fees, we have to get more money in.
BTW CCTV is an ongoing expense, upkeep, monitoring etc. This levy won't be the last charge related to it.