Incomplete Money deposited in my Bank account the difference is R1 030,00

I have an investment with Old Mutual, and on the 30th September I requested to cash an accessible money which it was confirmed by Old Mutual that is R9200, supricengly I got an email with the letter attached that says I will have R8 164,82 in 2 payments of R6 954,62 and R1 210 which were paid to my account on the 3rd and 4th October respectively.

O the 3rd October I enquired asking why am I not getting R9200 that was confirmed I could not get clear explanation the first person said he will make enquiry and comeback to me, second person could not answer transfered me to the next person who also transfered me to the third person who kept me on hold saying he is enquiring until the phone refer me to assessment of service and I could not understand why should I assess while waiting for clarity.

Today, 4th October 2024 I called the person who was assisting enquired twice not coming with the answer assuming that it might be market or tax but they are not sure the matter will be elevated.

I am not happy with Old Mutual service as they confirmed that the money to be deposited to my account will be R9200 but when they deposit is not that money, there was a difference of R1030, 00 which is not fair to me and I doubt whether my finances are adequately managed they can't be deducting money and not explaining why is not what we agreed upon. What I request is that the remaining money be deposited to my account as I have commitments and awaiting for that money, commitments was made based on the information provided by Old Mutual.