This is what they said when a refund is requested from a pre order, which is basically an essential right most countries and what they are saying is illegal:
We recommend you to consult with the clause 11.4.2 of the License Agreement, which states:
11.4.2. Termination of the Agreement with the Licensor, revocation of the right to use the Game and/or cancellation of the Agreement on any grounds does not provide the User with grounds for claiming from the Licensor return of the Fee paid or any other payments made by the User in connection with use of the Game.
Read the full text here
Please understand that we have no purpose to sell you pre-order of Escape From Tarkov at "all costs". Our company's reputation is very important to us, and we'd prefer to build long-term and strong relationships with our customers - so players remain only the good and fond memories about Battlestate Games even years later. But unfortunately refund is not possible by purely technical and legal reasons.
If you have problems with the game, create a separate request through the launcher.
We sincerely hope for your understanding of this situation.
If we answered your questions, please close this request and rate quality of our support service.
Respectfully yours, the Escape from Tarkov support service.