New HDD Activation

I have just replaced the old HDD with a new SSD.
Back now tells me I have to Activate again.
However, when I try to reactivate I am told I cannot activate because the number has been used on another PC.
How do I get around this problem?

"How to write support requests"

or

"How to release an activated license to use the serial number on another machine"

yes, this problem can be solved via support team