MTN - MTN customers - check your accounts and your apps! MTN does not deliver what you paid for!

Since the 5th Dec 2017 MTN has done nothing but dodge their responsibilities, no providing services that were actually paid for (and then one is not allowed to call it theft). During an upgrade to a laptop in Dec, the incorrect device was delivered, without a simcard as was requested and is part of the "sales pitch" of MTN that simswop is then free. Working remotely I needed the data, but had to buy extra data from MTN as they did not provide me with the upgrade- you do not provide your customer with what they paid for and then their only solution is to buy the same on another number. MTN - your call centre does not allow me to call this theft, please advise the correct term. On my primary contract I am suppose to get 500 sms' per month - reviewing this on my App I noticed that MTN gave me 0 sms' in March and April (Shortfall of 1000 sms) - for your info MTN - the last sms I sent to my mother before her death was never delivered. After an enquiry, I WAS SILENCED BY GIVING ME 200 SMS' in lieu of a 1000 sms' . MTN's answer is that they had a system glitch. Well, it is a very convenient glitch to (I would say *****) you apparently have another word for taking something which was paid for. Why were your clients not informed that they had not received what they paid for? Then, when you are caught out, you still decide to show your client that you do not care if you do not provide what was paid for.THIS IS A CORPORATE SHAME!!!! Each and every complaint is noted that it will be resolved and then: NOTHING. I would like my refund for my Data that I desperately had to buy due to your non-performance, the dual sim that has not been working for 4 months now until you decided to tell me it's not Rica'd and my SMS's (that is the 800 sms' shortfall you thought I would not notice) - Please, I do not want the 800 sms' now, I do not know 800 people to send sms's to. And today POW! my phone was disconnected due to non-payment and after a phone call mysteriously reconnected. MTN - please give me the word that is appropriate other than theft or ***** when talking to you Customer Care Centre about your persistent lack of providing what has been paid for, please also advise when you are going to wake up and refund me for your lack of service - it is six months now - you have done irreparable damage due to an sms not having been sent. Once again please provide me with the correcting wording to describe something or someone that persistently fail to provide one for services agreed on, the lack of restitution and the failure to give a damn when you are well aware of your actions.