Even on Saturday the support replied within an hour. I use a very old 3.0 WordPress with about 90 plugins. One of the plugin was triggering is errors. The support team helped to troubleshoot after that I become PRO user.
The price worths the product and service I receive.
To Improve
1. WooCommerce.
2. PayPal Pro.
3. SMS reminder.
Aside from that this is the best booking plugin by far.
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