Activation Limit reached - Support needed

Hello Parallels Team,
with my new Mac and me trying to install my Parallels standalone licence, I get an error message stating that I have reached the limit of activations and should purchase a new licence or contact support (I choose the latter).
However, I'm just switching machines quite frequently (getting new laptops often) - and that's probably the reason for reaching that limit of yours.
Would you please reset my licence, so I can activate Parallels again?
Thank you,
Jan