Terrible service and action from Vodacom

i have been a client of Vodacom since 2006. My contract is up for renewal and 'by chance', i received a phone call from a sales representative in KZN congratulating me about being such a valued customer. He explained to me that they are running a promotion whereby Vodacom will 'give me a free HP 15 laptop and ****le' which i wont be charged for. This sales representative (i have his name) told me that they will include it on my contract but i WILL NOT BE CHARGED FOR IT. He mentioned that he had noticed that my cellphone contract is about to expire and that he can assist me with upgrading. He told me that i could get the new Hauwei p10 lite with the laptop and ****le that are on promotion for loyal long lasting customers and that he promises me that my TOTAL vodacom bill will be R15 more expensive than what i have previously been paying! I asked him to repeat this multiple times where he guaranteed me that i will only be paying R15 more p.m. He mentioned that the call is being recorded. He asked me for a delivery address which i gave to him but I asked him to please email me the correspondence of the call and the paperwork so that i could read over it before i make any decision. Two days later, i received a laptop and a ****le with no paperwork or correspondence. The funniest thing, the contract is in my mothers name and she was not asked to sign anything, wasn't asked permission, wasn't even called. We have called vodacom to inquire, and the whole part about my 'contract only increasing by R15' was a blatant lie. The amount owing was an extra R2500 per month. We have made contact several times with Vodacom, we have been diverted from department to department, given multiple reference numbers and NOTHING HAS BEEN RESOLVED. i have a laptop and ****le sitting in my possession to which i did not agree to pay for! #Vodacom, i am SICK of dealing with your call centres, SICK of making the effort to resolve this and SICK of the service and blatant lies that i have been told by your employees. If this issue is EVER resolved, i will be changing service providers. Clearly being a client for 12 years means nothing.