You can only be bound to a written contract that you signed intentionally or directed another to sign on your behalf with the intention of being bound to it. A fraudulant and forged signature cannot be used to bind you to the agreement.
I would inform the provider that you do not want the service, you did not sign the contract, and that you are concerned about the forgery such that you will be filing complaints with the California Attorney General and the Federal Trade Commission for unfair/deceptive trade practices and fraud, unless the send you a written release from the invalid contract.
If you don't get satisfaction immediately, you can file those complaints at the following links:
Please let me know, if you have follow-up questions.
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