Cellphone contract application

I app**** for a contract on 05 September 2023, wasn’t contacted until the 25th even though during the application process and confirmation email they stated one will be contacted within 3 days. I sent all the required information 2 days later, there was no acknowledgment of the documents being received. On 4th October I received an email requesting for a South African ***** Prevention Service) letter. I called the number and was told they don’t have one for me. Called the Mondo call center one of their agents rudely told me to google how to get one as they won’t proceed with my application. I went through google only to find I had to register for this whole thing which was not mentioned in the email. Got the letter and sent it off, then got an SMS on the 9th stating my documents were received and being reviewed until today I haven’t heard back and I’ve been calling the call centre and no one can tell me what’s delaying the process. Your customer service is ridiculous