SARB mandate forms completion error

I need to submit a SARB mandate form, however it keeps saying "Completion Error" at the end. All the boxes are filled in and all information is correct. I tried emailing and calling (multiple numbers) and no one can help me. What baffles me is that we need to sign this form in January and when I did it in January there was no issues...so why do I need to sign one again and why is my information incorrect or incomplete all of a sudden??? Also the multiple numbers I called it either rings and rings, staff aren't willing to help or staff connects me to another number that once again just rings and rings. Absolutely awful and I'm still waiting for my money!!!!!!!!;;