Sizwe basically *****ing money from members

My son turned 21 i submitted that he is still studying but somehow the email got lost or something, i was billed R4000 extra resulting in me having no money left for basics in my house. I resubmitted proof that my son is financially dependant on me so they will charge me less but will not reimburse my money. Im on disability which means i earn less than what i used to so this is a big knock for me. Also what is very disappointing is that sizwe is owned by numsa my union of over 20 years but they won't help me me. Yet numsa statement is not to exploit eccominically