Your product key is not valid for your region and cannot be used for activation

Good day to all.
I purchased a Norton 360 Deluxe license for Europe.
But upon activation it says that your product key is not valid for your region and cannot be used for activation.
I live in Ukraine, in the city of Kyiv.
Gord Kyiv is not under occupation and therefore must be successfully activated.
I wrote to tech support a week ago but never received a response.
Please help me solve the problem.