*** customer care Cellc not helpfull

Call center agents don't keep promises and don't return calls. Trying to do simple sim swop. They made me purchase 5 different new cells C sim cards and every time I must wait 48 hours and load airtime when I check my caller I'd it's different and the sim swop is still not activated. What in the world must I do to get a sim swop done from these ppl cause they don't return calls and put you on endless hold without any connection to the proper person. And to top it off Cell C them self claims no responsibility what is being done to customers