Quote Originally Posted by dml1954 View Post
Yes you do, you have to have a Welsh address/postcode otherwise you cant vote. This is capable of being checked and the system filters out anyone who has already voted or is not in a Welsh area.
Incorrect.

I signed the petition and I have a postcode in England.

Whether they filter out non-Welsh postcodes subsequently is another matter but you can definitely sign the petition without having a Welsh postcode.