Billing of customers and **********ly taking their

On my account settled ***) i paid more than was needed. So i took a new contract ***). I noticed that the debit orders was not going of so i phoned mttn where that consultant told me that my premiums were deducted from that excessive amount. And i could see that that fund has been depleting on my bills. Then i decided i want another contract where their sales department which took me eight transfers to get to, told me that my account is in arrears. So explain to me where that money that was paid exesively has been going. Mtn has one working week to fix this or i will sue them for awhole list