FNB Nav Car disappointing service

I have had the worst experience with FNB's Nav Car service. I renewed my vehicle license disc in August and now in November and yet to receive it. I have done a lot of follow ups with various teams from FNB via calls, emails, Facebook, secure chat, FNB App complaints, Private banker and Melrose Arch branch but none of those succeeded. I think my next step is to report to banking ombudsman because now I could not even renew the disk at the post office as they can see its already renewed but I just never received it. Am getting traffic fines because of the expired disc which FNB is just not delivering. As a loyal customer to FNB am very disappointed on how this matter was handled, In closing due to the experience I had I would not recommend FNB to anyone.