I am unable to accept the developer program terms

When accepting the terms, the following error appears:

We are unable to process your request.
An unknown error occurred.
I had the same, wrote to Apple Support. Not fixed :( No real answer :( Still the same message.
Guys, I solved this problem by changing my IP and trying again (restarted the modem)
I am unable to accept the developer program terms
 
 
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