Change Password not functioning

I can recover my password but when I try to change my password to something a bit easier to remember it gives me:
Password incorrect or New Password invalid. New Password length minimum: 7. Non-alphanumeric characters required: 1.
Yet I do that!
has anyone else had this issue. If so how do you resolve it? My understanding of this was that it was all pretty straight forward.
 
Thanks
 
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