SMS FNB ****MERS

I have experience a terrible thing yesterday. ****mers took R5500 from my account and I reported it straight away. FNB send me an sms that has been declined, but FNB closed all my accounts yesterday. Went to our branch Garden Route Mall this morning and they have ordered me new cards and gave me a temporary bank card. Everything was reported to the ***** department I must wait 10 - 30 days for my money, but the bank sends me an sms to say it has been declined. Please explain....