dll is prohibited in MQL5 VPS, and it is written in the rules here.
There is no refund option in MQL5 VPS. There is one option only which I found:
Forum on trading, automated trading systems and testing trading strategies
Slava , 2019.02.20 07:45
If you cancel a paid subscription, the remaining time is returned to your MQL5.com account in the form of "free" minutes. Which later can be spent on a new subscription "for minutes."
Rules of Using the Virtual Hosting Service
- www.mql5.com
The page contains the rules of using the Virtual Hosting service (Virtual Hosting Cloud): general provisions, virtual hosting rental conditions, payment terms, as well as violations entailing termination of service.
You can cancel actually, but only within the first 24hrs of rent
and yes i am aware the post is old. information needed rectifying as it was incorrect

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Hi,
I have bought VPS for MT4 platform want to connect my robot with this but it is not allowing becasue my robot cannot run without DLL import and VPS not migrating it while showing error that first you need to remove DLL import from robot..
Pls suggest or help in refund
Thanks and Regards
Gunjan