I certainly understand this. However, it is going to cost them a lot of time and money in legal fees, and with the current mindset in the courts today - they might be beating a dead horse. It is up to God to lead them which direction they should take. Sometimes when one door closes, another one opens.
They need to have boilerplate other businesses use that say they can deny service to anyone for any reasons. Other businesses stipulate this, and also stipulate terms for cancellation of said service for a laundry list of reasons. Erminatonmof service rules. You cant get their products or services without agreeing to the contract. Software for one has insane terms of service and how they can terminate service for breach of a long list of contract rules.