Earlier quoted context omitted.
You will have access to 100% of the service if you hold up your side of the contract you signed.
Exactly. It’s a contract. If you cancel it early, the other contract partner has the right to get a compensation fee. That’s perfectly normal and also practised by other companies.
There is a doctrine of unconscionability in contract law that says just because you secure agreement to highly unfavorable terms doesn't mean the contract is beyond review of a court, if there is a significant asymmetry between the contract parties.