Billed Incorrectly . No feedback . Pathetic service

Have had a data contract with Telkom for over 48 months now. My data deal I took up was the Internet Promo of which i was allocated 10GB Day and 10GB night to use. My bill has always been R216 p/m, I have a linked sim to this contract hence it is not the orginal R199p/m . In September I got a bill of R716 debit from my account for my Augusts subscription . This is the first time ever in 48 months plus of having this service. I called the call center on the 2nd of October and logged this here is the service email reference number : ********** 9. The agent advised me that this was an out of bundle usage on the second sim attached to my contract. I was told that it had a spend limit of R500 . I advised her that I've not EVER changed any spend limits on any of the sims that I have with Telkom. I informed here that i've not even known that I had spend limits .... i also advised that whenever i'm out of data i get a 'Splash " screen when I try access the internet via my broswer ,regardless of the device i'm using ,advising me that i'm out of data bundles. This screen gives me an option to top up via my credit card or with airtime. I have used this 2 or 3 times in emergency previously . So she then logged this with the "back office " team advising me that this seems to be a glitch . I was advised that the team will contact me in 9 days. She also advised that she put back the limit to zero or capped that sim . 10 days came and gone! and here i was expecting a call - no one called me . I contacted the team again and spoke to Katlego Sefularo on the 2nd of November . She advised me that she has no feedback for me. I asked her to please follow up . She promised me a call back and did so advising me that the team is still working on this and that her manager Jabulile malete would contact me with comprehensive feedback to the issue . AGAIN .... no feedback . no one contacted me . So I called again today 25th November and spoke to Desmund who advised me that the team made remarks on my profile with reference to Ts and Cs etc... When I tried to explain that in the history of this contract which was upgraded to continue again i've never been billed for out of bundle usage and that this has happend on the second sim as stated above he said that since 2016 all contracts have spend limits added to them . I told him this still doesnt make sense as no matter which device i use , when i run out of data a splash screen pops up and advises me to either top up or i'm just going to have to wait till month end. After a lengthy back and forth trying to explain that i never changed any limits, my devices in usage have no smses of notifications of data depleted , no emails to warn me etc... and the most important fact - I never got a OUT of BUNDLE screen while trying to access the internet via my browser like i usually get , my patience has ran out ! Your system had some glitch and billed my linked sim with out of bundle usage which has never happened ever in the 48 months i've had this contract. I've ran out of data many times. I'm on this platform to ask for someone in Telkom to get back to me or Call me , you have all details . Come back to me with a solution that will entail a refund for the amount ****** from my account without any valid reason , change on my side or error on my part. I've been to your stores for help and no one can assist in this matter. I will take this matter to the police and court should this not be resolved next week .