Bad service and listening skill.

Hi all I downgraded my subscription on one of my decoder on self service I did correctly but when I check I found they have upgraded the other decoder which was on Access they upgraded to compact which I didn't choose. I chat with miltichoice via Facebook they said have escalated the matters to relevant department. I waited for morethan 2 to 3hours which they've said that matter will take only 2 to 3 hours.Chatting on they said they will help me with the matter I explained everything only to find that they are not help only making matter worse to downgrade makes them to switch my decoder n also pvr not working n I have already paid my monthly payments which is 943r but still not help now they upgraded my subscription to compact and compact plus n that one on compact plus was supposed to be Access which I did asked n now they say I have to pay 1500r which I don't understand please help