Voice Courier / Stamze FZE

We have dealt with them for 2 years. Payments were done but always slow (as usual).
4 weeks back, they stopped paying us. We sent them a lot of reminders but no one answered. On January 19th, we were blocked on their side.
Since then, no answers anymore.
They claim to have troubles with banks but do not offer any solution. Be aware, they wont pay you as well.
The companies legal name is "STAMZE Group FZE",
registered in Ajman, UAE.
They also have a HK subsidary "Stamze Group Limited".
IP Address:
FL-Connect Telecom Services GmbH