Visitors to UAE: don't buy Du

I travelled to Dubai for a few days and on landing I visited the du shop at Abu Dhabi international T3 Skypark 4. There was no Etisalat shop (which I have used in the past with no problem) so I went to du. After paying around AED235 for a SIM and data access for my mifi device I was able to connect. At the shop I wa requested to provide my passport and visa which I provided and copies of which were taken. 2 days later I was disconnected. On contacting du customer service, Joshua Jothi, who was of zero help and accepted that I was being punished for du's process issues, I was told the turnaround time for fixing such an issue is 24 - 48 hours!!! How can this help a visitor who is Dubai for just a few days. du is stealing from its customers. My documents are all in order and I travel extensively around the world and several times a year to Dubai. I've never had such a problem with Etisalat so visotrs please don't waste your time and money with du. du is stealing form its customers and will go unpunished but it's ok to punish the victim. Oppression at its best!