Lack of Correspondence results in over payment

I am exceptionally unhappy with this situation.

I enquired about making an eft advance payment towards my account last week. (apart from the debit order).

Received the details and paid my account in full (30 Oct 2021, 9:32 am), I sent my pop and all required details as per the correspondence email received on 27 Oct 2021.

I have been trying to get confirmation of payment received. I have received no response, and now a debit order was deducted for this month (03 Nov 2021, 1:11am) as well (4 days after paying my account in full via immediate payment), resolving in not only my personal finances being thrown off but your company sitting with a over payment and me STILL without any correspondence.

Taking in consideration that when asking for bank details to pay eft advances toward the account you get same day feedback. But once you paid you can't even receive a courtesy auto response mail. The lack of correspondence and service is very concerning and of extreme inconvenience.

I surely hope with this review that I should receive some sort of service. I will be closing my account permanently with them once I receive any correspondence.