4g Sim that is faulty

I purchased a 4g sim card on the 7 December and it got delivered on the 08 December since that date it is not working i have sent emails called and sent facebook messages with no avail, yesterday i called to complain and i was told that the sim card was delivered to me faulty they will do a sim swop, i was told that ram would deliver today but ram delivered to the wrong address that they received from Rain, my issue is that i bought the sim card with the intention of working from home and i cant work for the past 3weeks and my kids are home alone beceuse im forced to come to work, i was also advised by the consultant that even though i have not used the sim and seeing that its rains fault for the 3weeks delay i will only be able to use the sim card the the remaining one week and that is how things work, i must say im very disappointed at the fact that i paid 500 to use data for one week even though it is not my fault at this moment i just want a refund so that i can go to another network hopefully now that i write on hellopeter i will get assistance, i would not recommend rain to anyone after this horrible experience.