Nobody gets back to me - going in store a nightmar

i am currently on a telkom mobile, month to month, 15gb promo. Trying to change this to a smart wireless broadband 30gb, month to month sim only for R499p/m. Went into Woodlands store twice, queued 40+ minutes without being helped. Called the call center 9 days ago, was told that the \upgrades"department needs to call me back and that it will happen within 48 hours (by last week Friday).<br> <br> To date no call has been received to assist me. <br> <br> Can you please call me today to resolve this matter? Note that the Telkom sim card is data only and no voice calls can be received. Please call me on the cell phone number i provide below under \""mobile phone number\"" starting with 072...<br> <br> Telkom number in question had been listed under \""your acc/policy or ID no\"" field. """