I'm thinking that in addition to the invalid transactions (which will never confirm) that you might already have the valid ones that arrived, and just are overlooking because you also see the invalid ones.  [Sorry, re-reading your comment, you mention "many times".  So guess not.]  Those invalid ones are invalid.  They'll never confirm.  Sorry.   But if you got the valid ones, then your only problem is in trying to remove the invalid ones (there's a procedure that will do that).