Vodacom as a service provider sucks

I have had a Data contract with Vodacom since 2009. In 2016 after numerous complaints Vodacom installed a router to improve the reception of the internet but it did not improve and they told me they are awaiting a site plan. However, due to the very slow and frequent interrupted service the update of windows 10 resulted in a R 18 000 invoice. Since than I again had numerous interaction with Vodacom and now they want to summons me. Since 2009 I had a contract with Vodacom for Data, In the attached excel spreadsheet you will see that in 2010 Vodacom charged me a higher tariff as I did not renew my contract. (I did not know that) However, I renewed my contract and paid R 358 pm. Then in 2012 they had a special for R158 pm. There was no problem until 2014 when suddenly my monthly payments escalated suddenly and I thought I have used excess data but it escalated and in July 2015 I managed to find out that someone send invoices to Vodacom and claimed that I went into sites where the small print says they charge a certain rate if you enter that site. Vodacom then cancelled the invoicing of those ******* deductions but never paid me back. I then decided that I must ask for 10 GB pm but again Vodacom charged me R 1 458 pm. When I finally manage to get them to rectify it to the correct amount of R 508 pm they gave me a credit and the payments then went off against the credit. Then it at least stayed on R 508 pm. When the company I work for as a consultant moved to Brakpan the internet reception was very, very slow and cut out a lot without any signal. I complained for months until Vodacom send someone to check the signal strength. They agreed that it was very poor and installed a router which only improved it slightly. I complained and they said that they are waiting for a site plan and from May 2016 until now they have not managed a site plan. Microsoft tried to install windows 10 upgrade which is only about 4.5 GB but due to the frequent losing of the signal it started from the beginning again. This then built up to the amount of R 18 000 which resulted from the slow signal and the frequent losing of the signal.