respectfully, it must pay over 19,00 Euro to buy Ccleaner pro, is it a one-time-payment or yearly subscription? and is it for 3 PCs, please?
the normal, standard Pro license is 1 year, 1 PC.
stumbled on some official info here; https://piriform.zendesk.com/hc/en-us/articles/204044434-How-long-is-my-license-valid-for-