Mweb poor communications on Fibre.

It looks like my 10 years of excellent service with Mweb on my ADSL line has come to an end, by now having changed (not completed yet) to their Fibre Division. Without even going into the problems, can some higher authority do me the courtesy of contacting me directly, as emails and left phone messages are just ignored. Also please do not train your call centre operators, to use the standard "Our supervisors are not available" when asked to be put through to one.