Handing loyal paying customers over to legal collections

Why am I receiving threatening emails and messages that my account was handed over to collections, if I have never missed a single payment in my life

I have contacted your useless collections call centre 3 times now, and was assured that the error will be rectified. But still I am receiving threatening messages, and a draft summons which does not in the least resembles what a summons actually looks like. You must have a chat with your *********** legal department or get some external legal advice as to what a summons look like.

Fix whatever needs to be fixed, failing which I will ensure that this is brought to the attention of the media, I will post it on all social media platforms and will also institute legal action against Vodacom for the payment of compensation of my time which you are wasting, as well as compensation for the undue stress you have caused.