On March 10, 2021 I attempted to sign up for RingCentral FAX free trial offer for 30 days. After completing all credit card information for future billing I attempted to "Start Free Trial" only to have the link not respond. I have tried many times to contact the cancellation number, [protected], given on their site to ensure my credit card does not get charged for a product I have been unable to access and/or use without success. I also attempted to use their chat feature to straighten out this matter only to be hung up on. I have completed an online request for contact on their website and have yet to be contacted. I am requesting written confirmation that my credit card will not be charged for a service I have been unable to access and/or use. Jackie B Allen.