Would like to cancel my recent upgrade

<p>Hi, I have been trying to call 808, but that never gets answered. I upgraded 2 weeks ago for R249 a month and yesterday I have been informed of the upgrade offer by MTN (i dont know if this was on offer at the time of my upgrade) of 50gig data per month and 10 000 MTN-MTN voice minutes per month for the duration of the contract. </p> <p>Being a loyal customer for 11 years (on my name), my number has been in the family 4 years prior to it being on my name, I would like to know if I can qualify for this offer as I have only upgraded 2 weeks ago. I dont mind paying an additional R40 a month to qualify for the R289 minimum spend, to get this offer.</p> <p>Alternatively, please advise on the procedure and cost to cancel my upgrade.</p> <p> </p> <p>Thank you</p>