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Hi Thiloshnee,
Please ask your question in the Microsoft Certification forum using link below. There are support moderators over there that will respond to your question in 1 business day and can assist with getting your certificate to show up:
https://trainingsupport.microsoft.com/en-us/newthread?threadtype=Questions&forum=mcp
Note that passing MS-100 by itself is not enough to earn a certification.
Please click Accept Answer if above was helpful.
Thanks.
-TP