Frustrated customer

Could someone please assist me with the upgrades of my 1 phone contract and my wifi contract. I've upgraded my 1 phone contract with a tablet, but then realised I don't need a tablet because the call centre guys call us and sell these things to us making it sound like a good deal. I've called in on the 19 June to cancel the upgrade and the person I spoke to, never arranged for the tablet to be collected. I then had to call again on the 23 June and luckily that person areanged for it to be collected on Wednesday. I then called to cancel my contract so that I can upgrade only for data with no device. The guy I spoke to was very helpful and even provided me with a reference no. He said thwy'll call me within 24/48 hours to confirm the cancellation. I have heard from anyone as yet and I DON'T want that contract to be activated at all and we are almost reaching for the end of the month. Yesterday I've called for my Fibre to be renewed for another 12 months on a discounted rate, the lady read the terms and conditions to me and said she'll send the quotatio, NOTHING was received, so I guess, another person didn't do her job AGAIN. May I please ask that someone can assist with these queries asap. Thank you