Harrasment, Not updaing Account and Poor Service

My debit order for March was deducted on the 25th incorrect date instead of the 1st 0f each month 01/04/2020. I reversed the debit orders as I had no agreement to pay finchoise 25/03/2020. The funds available were for something else. I made a payment 02/04/2020 for the debit orders I reversed which is for mobile account and phone choice account and emailed the proof of payment on the same day. Up until today I am still getting phone calls and smses to make a payment. My accounts still have not been updated. I send an email to follow up and I received a response stating payments done over the weekend will only reflect today. The payment was not done over the weekend it was done last week Thursday 02/04/2020. It seems like people don't check or read the proof of payment send they just respond for the sake of responding.Please can you update my accounts as proof of payment was sent to you and stop calling and sending me smses on a payment I have already done.