Paying for service I dont have

I app**** for A 3G mobile router which was delivered on the 23rd September 2015, mweb was quick to bill me for prorata service and for September 23rd to 30th and for October and debit order went off month end, I have paid for data I don't have and for a service I cant use, it is now the 4th of October 2015. The technical department don't know what they doing and neither does billing. I will return the device to the canal walk service centre and stop my debit order. And a refund will be demanded. I is actually scary how many complaints there are against mweb, I suggest some heads should role.