Powerball winnings /bad service

Good afternoon, on the 6th may I played powerball using the standard bank app, 4 of my numbers were drawn on that day as winning numbers but to my surprise standard bank did not deposit my winnings into my account till today. I then called in using my airtime to enquire but I've been sent from pillar to post, I spoke to these 2 consultants Brenda Raphela & Ketapele Thite on different days and they told me my matter was escalated for investigation and will be resolved by the 12th, then on the 13th I called again since no 1 contacted me from the bank and I was told it will be reso by the 24th May. Today is the 28th and nothing has been done and I'm still waiting for feedback, I called in and spoke to Jabulani Shabalala who told me to continue waiting. I feel that standard bank is ******** people of their winning or money because if I didn't check those numbers nothing was going to happen till today and how many winnings have they held back? I gave standard bank more than enough time to resolve this but it seems like they do not value their clients.

Regards Stanley Maboa