Pathetic, *********** and inconsiderate so called bank

On 26 Feb I mistakenly transferred R5334 from my Cheque account to my home loan account. I logged a query via the FNB website asking for the funds to be transferred back to my Cheque account. I didn’t hear back from you for a couple of days, I called the home loan department and they told me I needed to fill in a form, they sent me the form, I filled in and sent it back to them. They said it would take 2-3 working days(but it actually took longer than that). A few days later I checked on my app and saw an amount of R2500+ available on my home loan account which I then transferred back to my Cheque account thinking the rest was also gonna be reversed. I waited and then received an email that the issue was resolved because I transferred the R2500+. The refund was supposed to be R5334 and FNB refuses to give me the rest of that money. My Cheque account is currently in excess because of the way you have decided to handle this whole situation. I need it sorted, I want my R1800+ back immediately!!!! Stop mistreating and *********** your customers