After several weeks of wasted time, which set my business back in our sales campaigns, my credit card company has processed a refund from these scammers.
I found out too late that SalesHandy is an India based startup business who do not support their product.
Many people complained on this excellent G2 site of the same problems my business experienced of saleshandy refusing to honour their money-back guarantee.
First, they dragged their feet in responding to support emails, waiting several days at a time, forcing us to send multiple emails. Then they fired their one and only support guy overnight, closed his email, didn't notify anyone or respond to any of his open tickets.
Next, when we eventually managed to get a response from another member of staff, they claimed we were outside of their 2-week refund window!
Finally, they stopped responding to all our emails, forcing us to get our credit card company to process a refund claim.
Turns out their solution ONLY works with gmail and won't work from a company's dedicated server. Critical features won't work, such as keeping track of who responded - so everyone gets emailed irrespective of whether they've responded or not. They didn't advertise this fact, and it took many emails before they confessed to this killing deficiency. They claimed to add this to their feature list, but of course were not prepared to give a date by which their product would address this major flaw.
If you do use gmail, then be warned that the user interfaces need major attention from a Usability Expert (UX), and they're not intuitive and take a considerable amount of time to learn.
We're now using a mailing platform from Poland (also reviewed on this site), which costs more, but is supported and doesn't suffer the same flaws. Too early to give it an endorsement. Review collected by and hosted on G2.com.