When I was a beginner, I spent a lot on scam EAs and false signal providers.
Almost all of them had 30 days or 60 days guaranteed money back service.
However, when I requested refund, almost none of them reply me.
I think a trial period is very necessary before purchase.
You could fully backtest the EA during the trial period.
Now we provide 5 days' trial period which only cost $1.
After your payment, please send your mt4 account number, account name, EA version to firstname.lastname@example.org, we'll send you the EA within 24 hours.
Tickdata Backtest for EURUSD, GBPUSD, USDJPY and XAUUSD from 2013