[DID ANYONE NOTICE SIGNIFICANT DROP OF NEW CLIENTS FOR THE PAST 2 WEEKS ??]

The same situation 

[I am not getting any notification alert in fiverr mobile app]

You should check your 'Settings' 

[hey, guys i need advice i have a client how wants to talk to me should give him my personal number.]

If buyers wish to contact you outside of Fiverr, just let them know it’s against the terms of service. If they cannot accept that, they’re not worth the time and risk.

[Order not yet!]

You can post on any kind of social media. I use Instagram and Linkedin

[Getting Top rated badge]

I have the same situation. I completed all the requirements 2 months ago. Just do a good job, get good reviews, and keep your performance within criteria that are set (Response Rate, Order Completion Rate, On-Time Delivery, Rating, etc.)

[Today I Complete an Order]

Congratulation! Keep it up!

[Allow Fiverr Username Change]

Username is your unique identity on Fiverr, it cannot be changed. If you would like to use another username, you will need to close your account and create a new one.

[What would I do after complete requirements for top rated seller to get the badge]

Top Rated Sellers are manually chosen. Important factors that influence: the volume of sales, exceptional customer care, and community leadership, among other criteria. The marketplace is constantly being reviewed by the relevant team and they take into consideration your performance from the previous 60 days to confirm eligibility.
 
To read more about the requirements for this level, you can visit this detailed article: Achieving levels.

[Different Mechanisms on Promoting your own Gigs]

Hello, please take a look. I hope it will help you

https://www.fiverr.com/support/articles/4409155265553-Ten-profitable-ways-to-promote-your-freelance-business?segment=seller

[Alhamdulillah Level 2 Seller]

Congratulations on your achievement!

[Seller Tips - Got Level One Seller Again]

 Congratulations on your achievement

[PRO VERIFIED]

Congratulations on your achievement 😀

[I am a new seller in fiverr, I want to become a top seller in fiverr, so what can I do now?]

Just do a good job, get good reviews, and keep your performance within criteria that are set (Response Rate, Order Completion Rate, On-Time Delivery, Rating, etc.)

[Promoted Gigs not working for me]

Same issue here! 

[What percentage of your buyers leave you reviews?]

67%. I don’t ask for reviews