Repairs and booking query

I am very disappointed towards Vodacom staff at head office Techzone, bought tablet with Vodacom online, now, my tablet needs to be booked for repairs I am requested for MI which I do not have its missing somewhere in my house and I thought Vodacom have system to check their MI as device is registered on my profile .Mandla told me actually my device cannot be booked due to the MI on the system has missing numbers they need full number, while busy waiting for him to get somebody to assist he call some guy called Siya,he call himself senior but in my surprise he does not behave like senior instead he made me more angry and frustrated. How I will get the MI if no one willing to assist,i am paying the contract firstly, secondly I am been treated like I am doing ***** bringing device that dos not belong to voda,Siya didn't even look at my profile he just talk as if I'm not a customer at voda, even decency to at least book the fone with that short MI from their system and should technician have query they can log the query for contract to retrieve the MI,no what happened we were debating for about 1hr30mins, I left the device for them to book it,