Hi haider, yes there is some restrictions, You can add upto 7 gigs until you reach level 1, after you reached level 1 you can add upto 10 gigs, finally if you reached level 2 you can add upto 20 gigs and that is the maximum.
Keep all of your gigs in the same niche, don’t mix it up with different services.
For example: if you are a graphic designer, you can add logo designing, poster or flyer designing, banner designing etc. Don’t mix it up with video creation or programming or content writing, something like that.
And here are some tips for you
Keep post your gig ads on facebook business groups, Twitter, goolge plus pages etc…
Place a quality gig image for all of your gigs
Create an eye catching video for your gigs
Write unique descriptions for your gigs
Perfect tags for your gigs
Always deliver your service asap
Always Over deliver, it will helps you to get returning buyers everytime
Be polite with your clients
Keep your rating at least 98%
If you follow these steps for almost 1 years, just forget about it, you will get non stop orders