I did not take out a contract with Mondo and MTN

I received a call from Mondo delivery department this week for an MTN contract except I did not take up any contract with them or MTN, the lady was surprised and said she will cancel everything. I then wrote to Customer Care to inquire about this and also request the recording of when I apparently took up this contract. I advised them that I think there is something ********** happening. Their response was that they will cancel the order, if I want the recording I need to go an MTN store, let them request it and they will send it. Why must I go out of my way like this to get the recording? I then mentioned to them that this is *****, I did not take up any contract with them or MTN. I am worried these companies are randomly using our details to run transactions that we didn't sign up for. Why else make it difficult to get the recording? Are they hoping we get frustrated and give up? No!