More pathetic service from Discovery Health

In November last year I submitted a claim for 1 box of 12 electrodes. Discovery paid for 1 electrode not 12. Trying to get this resolved with Discovery has been a nightmare. Phone the call centre. They go through the whole investigation while waiting on the phone only to come back to say that it has been paid and that the supplier overcharged. After explaining again they go off and then either promise to get it resolved or simply cut you off. Last Wednesday I spent 29minutes on the phone only to be eventually cut off. Do you think they bothered to phone back. Of course not.