Worst service ever FNB

I have directed my first complaint on 3 June to Hello Peter , since I am still struggling to get a matter resolved , THE 2ND TIME ON 9 July and today on 23 August I am back again, with still the same problem , no feedback, I have an amount of money from a ***** case, that is sitting with a 3rd party since March 2021. I have send through all necessary documents required to refund the money I spoke to Garvin, once in all this time, after I said I want to speak to his manager. He indicated that he can't get hold of the person from the other company, and will follow up, I have send 2 mails to Yoco (on which they rep**** within 2 hours,) indicated they will respond as soon as they receive correspondence from FNB.,. I have send the email and contact persons detail @ Yoco to Garvin with no response. I am frustrated at FNB service and willingness to assist to sort out this matter. This case was reported and followed up for months now, Every time there is a new reference numbers, with no results. What is the use? Why can`t the case be assigned to someone that actually is willing to assist? Go and check how many times I have called, mailed and followed up on this case??? it is ridiculous