Customer complaint

I was billed twice in one month. One says Bon arrs and the other says Bon Subs. This was never communicated to me that it would happen and i am devastated that Bonitas would do something like this. i am emotionaly traumatised as i cannot pay my bills due to being overcharged for medical aid. Instead of paying R1500 i have now paid R3000, i now face going into arears with my other credit providers because i will not be able to pay them. How is this good practice or customer service?