Poor service form AA administration

Having been a member of the AA for 40 years, I realise that a pensioners membership option is possible and I want to change my membership. I phone the call centre on 2 August 2018 to apply. I am told that my application is processed. However, since my debit order goes through in August, the (cheaper) pensioners fee will only be debited in 2019. Is OK, I agreed. But just for the record, I ask, please send me an e-mail confirmation of the new membership. At least two phone calls and three e-mail enquiries later, and I still wait for a response. My questions to the AA are: 1) do you treat all members with such disregard, or only some? 2) Is it really that difficult to confirm the type of membership and provide me with an invoice or any form of proof of payment?