Warning to existing customers who have already applied and paid, do not change the seat plan

Warning to existing customers who have already applied and Pro plan paid (Annual billing), do not change the seat plan.

The system will charge more and you will not receive a replacement seat plan for the original one you have already paid for.

Please contact the staff only. I have been charged and am requesting a refund. I hope I will get it.
I have never encountered a membership system like this in my life that is so confusing.