So sorry for you FO troubles, Alzie. Yes, I've had fragrance eat through thin plastic, too. What a mess, huh? Just FYI, if you use an oilcloth table cloth or plastic table cloth, fragrance will eat through it as well. It did mine, when I spilled some on my table cloth that I use to cover my work table. Since then, I always line the workspace with towels so clean up is easier. Fresh towels for each session.
Another lesson I've learned with fragrance is that even if I use a (small) glazed ceramic container, the fragrance will be absorbed by the ceramic and last for weeks in that container. Granted the glaze may have cracked or not sufficiently fired in the first place; I don't know. But another lesson learned: don't use those cute little ceramic creamers my Mom used to love for measuring fragrance. The smell is nice, but I can't know how much of it did not end up in the soap.
So now I tend to use Stainless steel or glass to measure my fragrances. There are some plastics that won't be eaten by fragrances, but I have these alternatives, so I use them and no more problems.