Keep your money. I have dealt with quite a few (about 10) different sellers on this platform over the years. I was always thinking to save money, and help some less fortunate people out at the same time. I had faith and kept looking for a seller with an ounce of decency. They are no where to be found. The sellers will try to rip you off at the drop of a hat.
The very worst scenario is a project with payment milestones. Once a seller has received some payment, they now own you. They will try to get you off the platform, ask to send money directly to their bank... Stop working, delay after delay... have you believe they will continue,... etc... etc... Finally they will need more money to continue... "ALL" the sellers will act as though they care, and they are good people... DON'T BUY IT. Every seller I have had the displeasure of dealing with, are scammers.
The company (Fiverr) have told me that sellers will get banned for violations etc... Total B.S... Sellers can open new accounts so easily in other peoples names, emails, addresses, bank accounts etc...
Now with all of this being said, my projects have been copywriting and web related projects. So I can not comment other industry participants. But regarding my projects, I found Bangladesh and Pakistan sellers to be the worst, and Indian and African sellers not far behind... People from these countries prey on western people.
Hire local... Know who you are dealing with! In the long run you will save money and be much safer.
Good Luck!