My free Gadget Care will be ending soon and I just want to unsubscribe from it. I have been trying to call 1-800-8-7565400 but didn't even get a "ring". I also sent an SMS "GADGETCARE 399 OFF" to 8888 but the only reply I get is "Sorry, we were unable to process your request. Please try again later. Thank you!" or no reply at all. Is there other ways from unsubscribing? I'm just worried that if my account isn't unsubscribed from Globe's system, I will be charged after the free 1 month period is up.