No payment reflecting on my account

My debit missed. Then called in and the agent sent me the bank details and told me i should just add my account as a reff number and the payment will reflect in 24 hrs. Up until today my account is still showing in arrears and after 7 calls to connection ignite i have not received any feedback and the agents cant or don't want me to speak to billing department. This is *****!!!!!! Paying money into a huge company like Incredible connection and up until today they cant find or put the payment onto my account????? I'm planning to take it further as opening a case of ***** against the company if no response is gotten in the next 48hrs. Very very very poor service from Incredible connection!!!