There are consumer protection laws for a reason. A company cannot contractually bend or override those laws — the law is the law. In this case, EA is failing to meet its legal obligations by refusing to provide evidence for the bans they impose, offering only generic statements rather than actual proof.
For example, under EU Directive 2019/770 (and the UK Consumer Rights Act 2015, where applicable), digital content must be supplied in accordance with the contract. The digital content I purchased — Battlefield 6 — is no longer being supplied as agreed. This failure is not due to any action on my part, but arises from a unilateral and unjustified ban imposed by the publisher, Electronic Arts, who has repeatedly refused to provide any evidence supporting this action.
Under Articles 7 and 8 of Directive 2019/770, the trader (EA) is responsible for ensuring the continued conformity of digital content for the duration of its supply. Multiplayer access is a fundamental and advertised component of Battlefield 6, and its removal constitutes a substantial lack of conformity.
Under Article 14, when such a lack of conformity occurs and cannot be remedied within a reasonable time or without significant inconvenience to the consumer, the consumer is entitled to a proportionate price reduction or full termination of the contract, including a full refund.