Bad service

I am so dissapointed in Vodacom at the moment. 3 Months ago they called my husband out of the blue and persuaded him to take out a WIFI contract added to the cellphone contract. The WIFI worked great for 2 months, but started giving trouble last month, (Not connecting) We have called customer support and technical support a few times but the problem continued every time as soon as we finished the conversation. Today, for the first time someone actually helped us correctly and told us to reset the modem each time we wanted to use it. (Better than not being able to use it at all) Later today, all of a sudden when we wanted to connect, it prompted us for a password (which we don't know) we called again, and all of a sudden they cannot help us because my husband doesn't \pass"the security question and doesn't know where our statements get sent to as we have never received a statement. Which doesnt make sense as we only own 1 house and apparently that is not the address that they have on their system. Obviously the error is with vodacom who captured the information incorrectly. This all sounds like a money making thing"