Incorrect Billed Amounts and not reimbursing over charge

<p>In 2011 or 2012 my mother, a pensioner at the time, signed up with ADT for security provision at a pensioner rate. Due to my mother not having a bank account, the debi order was processed against my bank account. The amount billed at inception was correct.</p> <p>In March 2017, when I stopped my security service with ADT, I became aware that ADT have been charging my mother the normal customer fee instead of the pensioners rate, with no communication or agreement what so ever. When I queried it, I received a stupid answer fro mthe consultant advising because the debit order runs of my account, therefore the price change. I argued that the contract is my mothers name but this did not matter to them. After escalating and numberous follow ups to ADT ( 2nd incharge to Call Centre Manager), the fee was reduced. I have since requested a copy of the original contract (still waiting on this document for two months now) and requested ADT to reimburse me for the incorrect billed amounts. To date and after numerous (at least 11 times) esacalations and follow ups, neither the contract nor the reimbur*****t has been provided/paid. I even had to provide them with details of the ADT sales person who assisted with the contract. When follwoing up the response I get is " they are still waiting for the copy of the contract".</p> <p>I have never received such bad service from any company and are utterly disgusted in ADT staff not taking ownership. I personally will never ever sign up with ADT again (and been telling people of their bad service). My mother on the other is dependent on their service as no other security company operates in her area.</p> <p> </p> <p>I will apprecite it is somebody at ADT (hopefully someone who takes customer service seriously) can contact me in order to get this resolved.</p>