You can share some proposal examples so we can check. Paste them in your reply.
I checked your profile and some other things I would recommed are to polish your profile, add items to your portfolio. Make sure your portolfio includes projects and examples that clearly picture the list you added to your profile. However I would adjust your profile to be more specific when it comes to sharing your experience.
You list one experience from 2009 with 4 bullet point that are just too broad and share not specifics at all. Plus you say you have 10 years of experience but again, an empty profile that shows no experience, nor any portfolio items. Also, if you really have 10 years of experience especially with marketing, promotional projects, events and exhibition then you should certainly upload a video that has more quality and is better put together for your future clients.