Where is the customer service???

Absolutely terrible service from this company!! We opened an account and went to fetch our modem on the 18th of April 2025, the store was offline and they said they would register us within 24 to 48 hours! 5 days passes with countless phone calls to customer service all promising to activate our account (which is in my husband's name). We decide to drive all the way back to the store on the 22nd of April and take back the modem to cancel our account. They proceed to cancel the modem but the sim cards which we received were not canceled and still showed on our app. The following day on the 23rd we saw the sim cards were active but yet still not cancelled... we decide to give them second chance and drive yet again to the store on the 26th of April to fetch the modem but because they cancelled the first account, we now needed to open a new account and pay R1 again for our first month (as that's the promotion that is currently running??...) We have now been billed with an amount of R1500??? and we have had the modem 1 week! I try to phone customer service to enquire about the amount only to be told the department that deals with the matter you can't contact via email or calls and they will just press a button on their side to send a message and we must wait for assistance??? Where is the customer service?? We can't even phone the local store for assistance as they have no phones in their store?? so must I now drive 40ks there and 40ks back home again just to get some answers?? I am not impressed and we are highly annoyed at this point!