POOR SERVICE FROM MTN SA

This is now the second time this year that i get false information when migrating on the MTN network. The first time it was the cost on my monthly subscription that will not change, for 3 month it was never the same. when i called them they referred me to a company called Ignition, they gave me a ref number( ***2.01) but never came back to me. a month a go i migrated again, after numerous times asking that my minutes i receive will stay the same, its only more data i will get for R20 more. The employee assisting repeatedly saying yes.. so i accepted the migration.. But again, not what i signed up for. when i called MTN the same sad story started, its not them its a 3rd party company doing the migration( CC outsourcing) .After waiting for 30min,MTN just hung up on me