Appalling service Vodacom!!!

I am honestly appalled by the level of service from Vodacom, I was recently contacted by an agent (3 March 2021) for an additional data contract which I agreed to provided that the data be transferred monthly to my current sim due to the fact that my phone is a single sim which he agree to. I was sent a package yesterday (4 March 2021) with an additional sim which I cannot use and the data is on the new sim sent yesterday. I made contact today via Facebook and an notified your agents of my problem and was told "if I received the sim, I need to make use of it" (see attached)- your policy dictates a 14 day return policy but it seems as though your staff are unaware of this. I provided my contact details for assistance and this agent persists on having a conversation via Facebook as opposed to phoning me , is this Vodacoms way of dealing with clients? When you need the business, there is no problem in calling a client, what's so different when a client has a problem? I do not want this sim and neither will I be renewing my currently cell phone contract in the near future. Businesses are struggling through this Pandemic and here is Vodacom proving that they do not care about retaining a customer who has used this network for the past 15 years. Please pick up your sim card, I do not want any future dealings with a network provider as yourself.