Q: My developer program is not activated yet. It is purchased on monday. please let me know how and when it will be activated.

You should wait few days, if the problem still exists, Contact Apple for support and service - Apple Support

FYI, you are not addressing Apple here - we are all other users like you volunteering our time to help other users. We do not have access to Apple's methods or handling of such matters.

Since the program is, at bottom, a "purchase"... you could try this - it has been said that this is a Worldwide "ALL Stores" link

iTunes Store - Contact Us - Apple Support

https://www.apple.com/emea/support/itunes/contact.html

Use this form for assistance with account and billing, code redemption, or purchase questions.

Here is a link to the Developer program:

https://developer.apple.com/support/purchase-activation/

It has several links for you to check on.