Holding deposit - Not being paid back

We have been enquiring about our holding deposit since 2023. It was supposed to be paid back after 6 months and since then we have been trying to get our payment back. It is absolutely ridiculous that the accounts department is so ***********. When we send a mail they always say we will ask the accounts department to get back to you but they NEVER do. I mean a simple line of communication would be appreciated and then ofcourse to resolve the matter at hand. I will never recommend Buzybuy to anyone ever again.