Ignoring emails requests

Hello Peter.<br> I somehow started getting billed on my Vodacom contract by Glomobi. <br> On their site [URL Removed] And then go to Contact Us, number 2 says clearly, 2: Via e-mail: Customers can send an e-mail to [Email Removed] containing the cellphone number that needs to be unsubscribed. The customer will be unsubscribed within 24-hours (during business days, otherwise on Monday after the weekend). <br> I no longer live in South Africa and do not have access to my South African cellphone number, so I sent an email to ask them to stop billing me. <br> Their reply was: \Thank your for your email. In order to unsubscribe from our service