Service not as advertised

I have complained continuously to Rain that whilst we are in their network coverage we never receive the advertised bandwidth - the reason they gave was that load shedding effected their base stations - Now with no load shedding we still do not receive the advertised bandwidth - I have down graded our 5G service and will cancel this - BUT my first hope is that RAin at least respond to my continuous complaints - That Rain does not supply advertised service can not be refuted there must be a reason BUT to NOT reply to support tickets or complaints is Unacceptable