The long story-short, thanks to PayPal I got refunded. The long story - I've purchased Microsoft Office Professional Plus 2019 CD Key (Digital Download) but the key was not valid. Tried numerous times the activation as per CJS site and page, but nothing. Contacted them with detailed explanation on everything including that I've followed their webpage and got answer to follow the written on their page and to sent them the error messages. I've tried one more time the activation and send them the error codes, after which they have requested an official written answer from Microsoft that the key is not valid. In order to get such response I had to purchase support option, the cheapest of which was 200Euros, which was not an option. To add to the above, each answer to my mails from CJS was delayed at least 2-4 days. I've purchased the key December 20th 2020 and thanks to PayPal I was able to get my refund at the end of February. If this payment wasn't done through PayPal I could still wait for refund CJS. Don't use them. Use other provider.