no support, many bugs and expensive

We were using Booking Ultra for many years (free version), after upgrading our site the support did not even reply how to transfer all old appointments.
We bought also the pro version for 200 € and tried to set it up. In the Booking Ultra Pro version you have to add your domain to your account – also this was not possible. Support even didnt reply till now. In my Eyes this plugin should be removed from the WordPress Plugins!!! 30 days money back guarantee ? also no reply… NO MONEY BACK! Do not buy this plugin! Also i will report this plugin now to the WordPress.org site!