M net switch over ti digital

So for four months now we are paying the older M net subscription but the service no longer works as per M net and multichoice ,they are changing over customers with original M net to a digital device for free after 50 calls to them they promised time was 27th of March butt still nothing after calling again they said we would get a call back still 2 weeks later nothing It seems like a dead end no where to go .Anyone out there that can assist being a pensioner and paying M net for over 15 years and this is the service .