Film needs a vapor barrier if you are going to refrigerate it or freeze it. In 35mm, this is managed by the snap-cap plastic cannister the film is shipped in. For 120, it is the foil pouch, same for sheet film. If you break the pouch, then you should use a heavy duty zip-lock, or two, one inside the other. The fact that your film came without the foil pouches is suspect in my book. There is no reason for unexposed film to ever be out of the pouch until almost ready to shoot. I would send the film back. It is not extremely difficult to find 120 size color film from time to time at the same price point you found. For example, I just purchased 100 rolls of 35mm Ektachrome EPP 36 exp. in bulk packs in-date for $1.00 per roll. These all came in their snap-lid plastic cannisters, but in bulk cardboard boxes of 50 rolls. They went right into my fridge. I realize this is 35mm, but I still contend that if you keep looking you will find similar deals on 120.