Upgrade Cubase Elements 10 to 10.5

I’ve received an email from Steinberg with an activation code for free upgrade to Cubase LE 10,5. First I had a Cubase LE6 then I’ve made an upgrade in Aug 2019 to Cubase Elements 10, the license appears in the eLicenser Control and it’s registered in my account on steinberg.net.
I have installed Cubase Elements 10.5 on my laptop but when I try to activate LE 10.5 with the given code the e-licenser gives an error “there’s no license to update”! Thanks

If you have already upgraded your LE to Elements, the LE code is useless.