App crashes & worst customer service

I can bare the app crashing whenever I use it but what I really hate is bad customer service. I have emailed them two times a month ago and no one got back to me. Then just this week I emailed them again (twice) with an issue about a purchase and no one has gotten back to me.
You guys have great magazines and I have yearly subscriptions with you guys for more than 10 magazines. So at least what you can do is give us good customer service. If this continues I will find another service like Zinio.

Safriya about Magzter: Magazines, Newspapers, v2.2