Replace them and be more careful next time.
🙂How in the world are you going to "wash" pleated shades and expect the pleat to resemble anything close to its former self? We like these better than roller shades too, but they do have issues.
I have front pleated curtains in addition to the shades and will,likely be replacing those as well someday.
Jeff - WA6EQU
'06 Itasca Meridian 34H, CAT C7/350