Avbob not delivering on the product (survivor benefit) as promised only giving me excuses

I am so disappointed in the service I'm getting from Avbob, on the 4th ofJanuary my husband passed away so I claimed at avbob I also have the spouse survivor benefit that is supposed to pay me for 6 months, I received the first payout on the 26th of February after I had to call them numerous times regarding the claim and they kept on saying they don't have my banking details. Now I still have not received the payout for this Month March when I called Chantal Kotze to enquire she said she will enquire with her manager Maggie so now they giving me a run around at first they said it was paid on the 1st of March I sent them my bank statement as proof that I did not receive it, now they not answering my calls I don't know what to do now. Please help me