RIDICULOUS WEIRD UNACCEPTABLE UNFAIR CONSUMER TREATMENT

RIDICULOUS - I went to the Vodacom 4U shop in Hillcrest to apply for a new contract. They ported my number from Cell C to Vodacom as I wanted to keep my number. The next day I was informed that my application was declined because there was an investigation on my ID. I immediately contacted the bank and Home Affairs but I was told that everything was clear and no investigation on my ID whatsoever. I then went back to the shop and they told me to get credit reports from the credit bureaus which I did but these were also clear. I then sent an email to Vodacom headoffice and they informed me that there was some documents outstanding and the manager of the shop would contact me. He did so and asked me to send my latest 3 months bankstatements as the ones they had were only up to end of Aug and also a letter of the bank to confirm that debit orders are allowed on my current account, ridiculous as this is a norm. My banker advised me to send the letter confirming my current account, which I did send with the latest 3 mnths statements. This morning I was informed that the application was approved on condition that I pay R7000 in advance. This is the first time ever I've heard of this, totally unacceptable and ridiculous!!!! The manager couldn't give me any reason why they required the upfront payment too. The contract I app**** for didn't mention any upfront payments at all. I need an explanation on this as I find it very strange