Afhco really disappointing me!!!!

I am very disappointed with the service at Afhco, I moved in to Afhco into Impilo house in February and was told that the normal rent is for a bachelor is 3450. The company that I work for has a relationship with Afhco in which I'm supposed to get 10% off my monthly rent. When signing the lease agreement I did inform the consultant about the discount and he even went into manager's office to have that signed for. I have been getting charged the full amount since February without my discount. Which means I have been paying R345 extra for the past 6 months which is R2070.00 to date which I'm being owed. Next month is my 7th month here which means I qualify for a 25% discount on my rent, I just received a statement for August and I'm being charged the full amount. When I went to the office I was told that I was charged in full because my account had R93 Rands overdue. I mean this the same people who owe me R2070.00...I just want my discount to be app****, and my account to be credited... And the R93 I don't owe that because you owe me R2070... Please get this fixed ASAP....on the 1stbwill be moving out of its still not sorted by then and as I have paid for the upcoming month too I will want a full refund, and the money that I'm owed.