Have you tried contacting them through their VIP Support? I know you can access it in the Help menu (it's listed under VIP Support).
You may have emailed an old address that doesn't work, so you should try contacting them with the VIP Support and see what happens.

Usually a company that has support in email will send you an automatic reply with your Ticket Number and let you know they've received your request. If you don't get this, there's a great chance they didn't get your message either.

I already paid for their product, Incredimail." They have a big list of Wallpaper which I tried to click to change my wallpaper. It doesn't trigger any change with my clicking the image. I, therefore e-mailed to [email protected] to ask for a solution to the problem. They never responded, their office being in Israel. They are running their business in the US but are ignoring their customer's request for solution to the problem regarding their product. I consider that an Injustice, after we answer their advertising of their product, by paying, hoping for good customer care and service. But they are giving a "deaf ear" and a "blind eye" to our e-mails screaming for their technological help.

It's odd that they have the audacity to run their business in the United States but they are showing their lack of care and concern for their customer's complaint and request for help regarding their product. Other companies are very responsive to their customers' questions and problems regarding the products they sell.I hope for a resolution to this recurring problem with your official clout to deal with unresponsive and uncaring companies like Incredimail. Thank you very much.

"They never responded, their office being in Israel. "

Why is their location in Israel relevant?

"I consider that an Injustice, ...to our e-mails screaming for their technological help."

This is an injustice? One email is screaming? Do you know what hyperbole is?

"It's odd that they have the audacity to run their business in the United States "

Why is this odd?