MWEB LTE

WE SUBSCRIBED TO LTE, WE HAVE NO SIGNAL WHERE WE LIBE AND DESPITE NUMEROUS COMPLAINTS AND REPORTING THIS, MWEB WILL NOT RESPOND. WE CANNOT USE THE LTE, WE HAVE SEN DOZENS OF EMAILS, CALLED DOZENS OF TIMES, AND TREY WILL NOT RESPOND. WHAT DO I DO ?? THIS IS *******!