Appalling Service & incorrect billing

I was offered a sim card by FNB Connect and after much consideration decided to give it a shot since I have banked with FNB since 1998 and have been very happy with their service all round. I opted for a bundle package which provides inclusive minutes, data and sms. On 25th the sim card arrived and I started to use it. However a day later I noticed on my profile I was being charged for every transaction. I immediately called FNB Connect 3 x and was on hold for over an hour so sent them an email. ***, to date I have had no response to that. I then called again on Friday as I was increasingly concerned about the charges and spoke to Vuyo who said that he could see that my bundles had not been activated correctly and he would escalate my query, he assured my he would call me back by end of day Friday. That was last week. I have still had zero feedback. I use the phone for business calls so in the interim have had to continue using it.... = continued charges. On the weekend I left a few messages on the FNB Facebook page and an RB Jacobs assured me I would be attended to, but still this has not been done. Will closing ALL my FNB accounts be the answer?