********** by Vodacom twice in 2 day, patheticly shocking to say the least

I've upgraded my contract recently and got 2 photos. The 2nd phone came with R55 data and I've decided to bless my wife with the phone. We eventually set the phone up yesterday and discovered that there is no airtime on the simcard + ********** 8900. I've enquired from Vodacom and the consultant Informed me that the airtime was used the previous night (27.12.2017) as data -, she said she could not assist any further. I was lost for words, because we've only switched the phone on, on 28.12.2017. This mystery could not be resolved by the Vodacom agent... On the same note, I've received 20Gig with my upgrade and did not utilised my wife's 3gig data with Vodacom. However, I've decided to use my wife's data today on ********** 722 and couldn't lock in because the password was not recognised. I've phoned Vodacom and the lady gave me the correct password that has be used. Upon further enquiry it was discovered that the 3Gig was gone. The consultant were not helpful at all and just told me that the data was used throughout the whole of 27 & 28 December, but she could not explain how it got used up without the correct password. The poor Consultant was not of any help and she could not furnish with any explanation. She also could not explain why the night owl data remained unused although the data was apparently on the whole day and night. I AM REALLY FED UP WITH VODACOM, BECAUSE IT ALSO HAPPENED ON A PREVIOUS OCCASION WHERE 1GIG DATA MYSTERIOUSLY VANISHED. THIS IS **************** FROM LOYAL CUSTOMERS. CAN SOMEONE PLEASE GET BACK TO ME AS SOON AS POSSIBLE, BECAUSE I AM NOT IMPRESSED WITH THE POOR SERVICE I HAVE RECEIVED FROM VODACOM THIS FAR.