One person reads these.
Not a support desk and not a chatbot. The person who wrote the tool, usually within a working day.
These two answer themselves
It will not start, or says the address is not allowedOne setting in MetaTrader has to be ticked, and it is the step nearly everyone skips. The setup guide marks it.New broker, new computer, or a changed accountRelease the old account yourself with your key and the email you bought with. No message needed.
Rather use your own mail program?
Write to hello@dynfx.pro. The form goes to the same place; it just asks the questions that would otherwise cost a round trip.