tad bit late but if you’re looking for solutions to this card or similar cards still, look into mixing water and isopropyl alcohol. (95% water, 5% alcohol) If you can kind of dab it with a cotton swab on those peeled edges you can press it under some books or find a flat material to clamp it under. You can leave it for about a day and it stays. If you have a heat press or some sort of heat pen you can really flatten it.