This is a kit manufactured by Vervaco so if you need any replacements, you will have to go through the actual manufacturer. Most of the time, manufacturers will use their specific brand of floss for their kits so there's no way to replace the floss without going through them. They have a website if you can't find thier contact information on the kit:
http://verachtert.be/index.php/vervaco-en/
Just contact them and let them know what product you have of theirs and what you are needing more of and they should take care of it for you. Thank you!
~Kristi @ ECS
Posted by: Kristi @ ECS on 06/17/19
Please let us know what you find out. I'm working on this one, too and I'm not sure I'll have enuf.
Posted by: trykeryder13 on 06/17/19
Any luck with getting extra thread? I have reached out to Vervaco on their website and on Facebook with no reply and am out of floss! It says it is DMC colors but doesn't list what the DMC numbers are. Thanks.
Posted by: achivin1 on 01/05/21
achivin1 - Not sure if this will help or not, found these
I also found some images that indicate they are a DMC conversion. Attached is one, but it only has part of the alphabet. You'd need to search for more.