I had a stuck filter once on my 55-250mm lens. The grooves weren't good on the filter. I just rubbed the edges for a while, so that they get a little warm, then use a cloth, put it over the filter and try opening. The cloth provides more grip. Next time before screwing the filter back, get some WD40 oil and apply on the grooves. Just be careful not to have oil on the glass!
I have done this a few times and even with my B+W filters. Some will cringe on doing this but I have never spoilt any of my filters doing so.
I would hesitate: WD40 is very thin and thus flows very well, there can be no guarantee that it will not flow where you want it to be, e.g. onto the glass.Next time before screwing the filter back, get some WD40 oil and apply on the grooves. Just be careful not to have oil on the glass!
better to put the ice into plastic bag and place it on top of the filter (lense point upwards as if taking picture of ceiling). Make sure the plastic bag is waterproof. You just need to lower the temperature of the filter a bit, so you can unscrew it. Wrap with towel when unscrewing.for me i carefully dip the filter into a bowl of ice water, without letting any part of the lens get into cotact with the water... after 30 secs you can easily take off the filter