Worst service provider

Worst service ever !!!!! Got a device delivered 2 weeks ago since then ive been phoning and holding on lines for hours using my airtime and still my device is not active they said 48 hours its a week later then agian phone on Thursday and still not active so havent used it for the month but i must pay fisrt installment month end how is this even far ive beem promised calls back and nothing if i knew this i would have never open a account with this company. There is no customer service all !!!