Frozen account easy zero for 2 months

Am very disappointed by FNB it's now going to 2 month my account easy zero is frozen and they said I received 110 and 110 money into my account on 2023.03.11 I should provide receipts where by I don't even know how I will get it and I don't know if that money is involved in *****. This month I nearly lost my renting place with my family because I could not able to pay renting and that account there is money there. Why can't they take their 220 and unfrozen my account. I tried to call the number below no pick up or either respond from even on email. To behonest I don't know If such amount it's *****. Please fnb unfrozen my account

Case number : ***.

Assigned investigator : Mhlambi, Sithembiso.

Email : ***

Contact : ***